Jamb 2024 Biology Answer day 3

JAMB VIP 2024 EXPO 🪼:
*2024 UTME BIOLOGY QUESTIONS TODAY*

When a red rose is observed in blue light, what color does the observer see?

What is the first organ that develop in a fetus?

A) liver
B) heart
C) brain
D) kidney

Answer is B heart

Which cells play a role in the body defense

A) erythrocytes
B) thrombocytes
C) leucocytes
D) basophil

Answer is C leucocytes✅✅✅✅

How many true ribs are present in the human body ?

A) 5
B) 6
C) 7
D) 8

Answer is C 7

Lack of oxygen in the tissue is called?

A) anaxia
B) hypoxia
C) cynosis
D) anorexia

Answer is B hypoxia

Which of the following has oxygenated blood?

A) renal veins
B) pulmonary veins
C) pulmonary arteries
D) hepatic portal vein

Answer is B pulmonary veins

The time duration of one heart beat is?

A) 0.2secs
B) 0.4secs
C) 0.8secs
D) 0.6secs

Answer is C 0.8secs

The acid found in the stomach is .

A) nitric
B) acidic
C) hydrochloric
D) sulfuric

*09117898698*
The number of bones in the middle ear is ?

A) 6 bones
B) 3 bones
C) 5 bones
D) 8 bones

. Physics Question

A stream boat is flowing at 0.75ms-1 and a boat heading perpendicular for the stream landed at the opposite bank at an angle of 30degree Celsius. Calculate the velocity of he boat.

UTME 2024 Questions (First Batch]

Learning how to ride a bicycle or drive a car is the function of what part of brain?

A. Cerebrum
B. Cerebellum
C. Medulla oblongata
D. Pons

[X + Y = Z is an equilibrium reaction. The addition of a catalyst?
A. increase the amount of Z produced in a given time
B. increases the rate of change in concentrations of X, Y and Z
C. increases the rate of disapearance of X and Y
D. increases the rate of the forward reaction
E. decreases the amounts of X and Y left after the attainment of equilibrium

Incomplete oxidation of ethanol yields

A. CH3COOH
B. CH3COCH3
C. CH3CH2OCH2CH3
D. CH3CHO

The hepatic portal vein is unique because it
A. carries deoxygenated blood
B. begins and ends with capillaries
C. is the largest vein in mammals
D. carries digested food
E. is the shortest vein in mammals

The orbitals that overlap in methane are
A p2 and s

B sp³ and s

C p and s

D s and s

Which of the following is not a function of the blood?
A. Maintenance of body temperature
B. Formation of clot
C. Distribution of bile
D. Transportation of excretory materials

During anaerobic respiration in skeletal muscles, pyruvic acid is
A. reduced to lactic acid
B. oxidized to ethanol
C. oxidized to lactic acid
D. reduced to water

The end product of the digestion of carbohydrate is?

A. amino acid
B. glycerol
C. glucose
D. sucrose

Cell Wall of prokaryotic cell is made up of
1)Cellulose.

2)Carbohydrate.

3)Protein.

4)Peptidoglycan

Diverging lens are always?
Another name for diverging lens is?

In a step down transformer Np is expected to be
A equal to Ns
B >Ns
C
*09117898698*
Questions on Life changer

1. Full meaning of EMEC

2. What’s the post of Hon habib

3. How much did salma give Dr Kabir

4. Where did Ummi and her kids sit while waiting for their dad

5. What did salma didn’t like when she was Queen Amina Hall as her hostel

6. Why is Talle named the quiet one

7. Who is Talle

UTME 2024 BIOLOGY
…
Which of the following is not a function of the blood?
..
A. Maintenance of body temperature
B. Formation of clot
C. Distribution of bile
D. Transportation of excretory materials

CRS

The cow of bashans would be condemned Abi rebuke By

A chain

B rope

C scale

D flood

The book of Philemon teaches ——

In Paul’s teaching of justification by faith one can now what ——-

The Dry bones Ezekiel saw signifies

A joy of Israel

B hope of Israel

C peace

D faith of Israel

In matthews account the lord told his disciples to go to where ——-

Don’t rob people of their wages was said by who during the preaching of baptism.

The ass he used for triumphant entry signifies

Kingship and humility

Humility and love

Humility and happiness

Humility and service.

BIOLOGY

What is the function of Petaloid sepals?

What is the plant characteristics of euglena?

What is the association between shark and remora fish?

An example of carnivorous plant is?

What is the bone of the ear?….stirrup

What is the process of urine formation?

Lime water turning milky confirms the?

Components of blood?

The urinogenital tract of a male ?

Who postulated the theory of use and disuse?

Movement in amoeba is through?

Population

QUESTIONS

MATHEMATICS

1. Calculate the area of an equilateral triangle of side 8cm

A. 8√3

B. 16

C. 4√3

D. 16√3

2. The pie chart shows the monthly expenditure of a public servant. The monthly expenditure on housing is twice that of school fees How much does the worker spend on housing if his monthly income is ₦72,000

A. ₦1,000

B ₦2,000

C. ₦3,000

D. ₦4,000

3. Approximate 0.9875 to 1 decimal place.

A. 1.1

B. 1.0

C. 0.9

D. 0.10

4. Add 54base 8 and 67base 8 giving your answer in base 8.

A. 111

B 121

C. 123

D. 143

5. In a class of 40 students, 32 offer mathematics, 24 offer physics and 4 offer neither mathematics nor physucs, how many offer both mathematics and physics?

A. 4

B. 8

C. 16

D. 20

6. If X, Y can take values from the set (1,2,3,4), find the probability that the product of X and Y is not greater than 6

A. 58

B. 516

C 12

D. 38

7. A trader realises 10x -x2 Naira profit from tbe sale of x bags of corn. How many bags will give him the maximum profit?

A. 7

B. 6

C. 5

D. 4

8. If y=23five

101three, find y, leaving your answer in base 2

A. 1110

B. 10111

C. 11101

D. 111100

9. Calculate the total surface area of a cupboard which measures 12 cm by 10cm by 8cm

A. 1920cm²

B. 592cm²

C. 296cm²

D. 158cm²

10. Convert 0.04945 to two significant figures

A 0.040

B. 0.050

C 0.49

D. 0.049

11. The probabilities that John and James pass an examination are 34 and 35 respectively. Find the probability of both boys failing the examination

A. 110

B. 210

C. 920

D. 1120

12. Convert (10110.011)base 2 in base 10?

13. In how many ways can kantata be formed?

14. cube of (101) base 2 (i.e cube is thrice 100*101*101)

ENGLISH

Antonyms and Synonyms words that came out.

Frivolous

Accent

Tremendous

Flippant

Callous

Boqus

Complacent

Humdrum

Impertinent

Sagacity

The passage was based on “MOSQUITO AND ANIMAL KINGDOM”

1. What question did Bint ask Mallam Salihu?

2. What did Omar get in his

JAMB exam?

3. Who introduced the snail soup?

4. Where did the police arrest Zaki?

5. How much was given to Tomiwa?

6. How did Habib notice that the girl on the car is not Salma?

Why does Ummi eavesdrop on her children?

Who and who was in the car.

Answer Abib and laraba.

Where was Talle arrested?

How much did Tomiwa give her roommates?

. Snakes and ladders always____me happy these days.

A. makes

B. make

C. made

D. making

. My__is for you to refuse the_of the wicked.

A. advise/advice

B. advice/advise

C. advice/advice

D. advise/advise

Synonyms

. He was supposed to “envelop”

. Bogus- Means fake

. Possible interpretation

He is generous to a fault

Vowel sounds

Bluff

A. rough

Consonant sound

Batch

A. Church

Stress

characterise

continental

Emphatic stress

John CANNOT only sing, he can also dance

CHEMISTRY

1. N2(g) + 3H2(g) = 2NH3(g)

From the equation above, calculate the volume of gaseous produced if 0.5 moles of Nitrogen gas are used under standard condition [G.M.V=22.5dm³]

A. 2.24dm³

B. 22.4dm³

C. 11.2dm³

D. 44.8dm³

The device used to measure the angle of dip is

A. Dip circle

B. Dip protractor

C. Magnetic dip

D. Dip angular

R-L-C circuit, resonance occurs with?

PHYSICS

What is the slope on velocity time graph?

What is the effect of hydrogen bubble i.e. polarization?

A good machine should have what value for it machanical advantage?

CHEMISTRY

Atomic theory

Quantization

Types of reaction

Endothermic and exothermic

Electrolysis (mass of copper)

Gas law(Charles law)

What to consider in the production of salt

Reaction of ethanol and phosphorus 5 oxide

Monomer of polyvinyl chloride is called?

Tin is extracted from cassiterite by ?

Consequences of dispersion of light is?

Compound microscope can produce?

Slope of a velocity time graph is?

According to kinetic molecular model in gasses is?

Pressure in a liquid increases with ?

One question asked for the structure of a neuron

The vertebrae present at the neck region is……

The splash zone is found in….

Yellow fever is transmitted by which vector

A wave equation will be given where you have to get the wave number… Thisone was really simple

In English,antonym of invigorating

Birds moving away from their habitat due to unfavorable climate conditions Is what type of adaptation?

Air spaces are found in what structure of a plant cell

A) palisade layer

B)epidermis

C)spongy layer

D)cuticle(not sure about this option)

The part of a flower that attracts pollinating agent is called? A. Sepal B. Petal

Oxygen is necessary for the germination of seed because? To active the enzymes or so

A fruit produces from a single ovary and multiple carpels is called? A indehiscebt B aggregate C composite D simple fruits

A bus initially moves from rest to 40M in 2mins. Calculate its acceleration… The answer is 4

Maths

If the value of log 3=0.47 and log 2= 0.30 .find log 5 all in base 10

2. They asked about the perimeter of a sector having radius of 10cm and @ as 60

3. Find the mean deviation of the numbers 2,5(x+2),7,(x+1) if their mean is equal to 6 .

The instrument used for viewing the sun is called a) telescope b)helioscope✅

An example of a solid gas mixture is (All I know for this one Is the answer is smoke)

Use Of English JAMB Day 1 Questions from some candidates for 2024
1. About the first meeting of Ummi with the H.O.D

2. The register was about government and lawmakers stuff

3. Under Synonyms and Antonyms: ferocious, prodigious, lynch, exorbitant

4. The questions from the life-changer were centred around Ummi: What happened during her registration. The event with her HOD and the atmosphere.

5. Questions on stress, emphatic stress, antonyms and synonyms, vowels and consonants, lexis and structure and a comprehension passage

6. We were given a comprehension about group studying

7. We were given a register about arms and tiers of government

8. When Ummi went to the HOD’s office Dr. Samuel Johnson

9. After Ummi used the HOD’S toilet, she felt…

10. When the HOD told Ummi your welcome my dear, Ummi felt…

11, IDIOM: What it means to be ‘dressed to the nine?’

12. IDIOM: what it means to ‘hit the hay’?

13. All the questions came out from Ummi’s meeting with Dr Samuel Johnson

14. Why did Ummi lie to the HOD that she was pressed?

15. Why didn’t Ummi tell the HOD that she was married?

16. Ummi described the way girls dressed in the University as

17. Whom did Salma compare the University lecturers to?

18. In HOD’s Office, why Ummi didn’t sit down until she was asked to

19. How did Ummi feel after using the toilet

20. the HOD commended Ummi’s? 21. Ans pattern of dressing 22. 2. After Ummi used the toilet he felt?

23. Ans. Still uncomfortable and embarrassed

24. 3. Ummi was wearing what in the HOD office?

25. Ans. A decent dress but not on her Hijab… This one was tactful, read carefully all the options

26. The HOD’s salutation Made Ummi? 27. Options A & B are off

28. But options C & D still confusing me till now

29. C. Suspicious

30. D. Discomfit

31. “One does not volunteer for questions unless asks from’ was said by who? Ans Ummi

32. Stress germinate Answer is GERminate 33. refrigerator Answer is reFRIgerator

34. The mother advised her daughter to hit the hay means?

35. The synonym of “chivalrous” Answer is Honorable or respect
Answers to the above

(B) 3 bones

The velocity of the boat is 0.75 m/s

B. Cerebellum

Addition of a catalyst to the equilibrium reaction X + Y = Z would D. increases the rate of the forward reaction

A. CH3COOH

B. begins and ends with capillaries

B. sp³ and

C. Distribution of bile

C. oxidized to lactic acid

C. glucose

The cell wall of prokaryotic cells is made up of 4) Peptidoglycan

Diverging lenses are always concave Another name for diverging lens is concave lens

In a step-down transformer, Np is expected to be B > Ns.

09117898698

CRS

The cow of bashans would be condemned Abi rebuke By

A chain

B rope

C scale

D flood

The book of Philemon teaches ——

In Paul’s teaching of justification by faith one can now what ——-

The Dry bones Ezekiel saw signifies

A joy of Israel

B hope of Israel

C peace

D faith of Israel

In matthews account the lord told his disciples to go to where ——-

Don’t rob people of their wages was said by who during the preaching of baptism.

The ass he used for triumphant entry signifies

Kingship and humility

Humility and love

Humility and happiness

Humility and service.

BIOLOGY

What is the function of Petaloid sepals?

What is the plant characteristics of euglena?

What is the association between shark and remora fish?

An example of carnivorous plant is?

What is the bone of the ear?….stirrup

What is the process of urine formation?

Lime water turning milky confirms the?

Components of blood?

The urinogenital tract of a male ?

Who postulated the theory of use and disuse?

Movement in amoeba is through?

Population

QUESTIONS

MATHEMATICS

1. Calculate the area of an equilateral triangle of side 8cm

A. 8√3

B. 16

C. 4√3

D. 16√3

2. The pie chart shows the monthly expenditure of a public servant. The monthly expenditure on housing is twice that of school fees How much does the worker spend on housing if his monthly income is ₦72,000

A. ₦1,000

B ₦2,000

C. ₦3,000

D. ₦4,000

3. Approximate 0.9875 to 1 decimal place.

A. 1.1

B. 1.0

C. 0.9

D. 0.10

4. Add 54base 8 and 67base 8 giving your answer in base 8.

A. 111

B 121

C. 123

D. 143

5. In a class of 40 students, 32 offer mathematics, 24 offer physics and 4 offer neither mathematics nor physucs, how many offer both mathematics and physics?

A. 4

B. 8

C. 16

D. 20

6. If X, Y can take values from the set (1,2,3,4), find the probability that the product of X and Y is not greater than 6

A. 58

B. 516

C 12

D. 38

7. A trader realises 10x -x2 Naira profit from tbe sale of x bags of corn. How many bags will give him the maximum profit?

A. 7

B. 6

C. 5

D. 4

8. If y=23five

101three, find y, leaving your answer in base 2

A. 1110

B. 10111

C. 11101

D. 111100

9. Calculate the total surface area of a cupboard which measures 12 cm by 10cm by 8cm

A. 1920cm²

B. 592cm²

C. 296cm²

D. 158cm²

10. Convert 0.04945 to two significant figures

A 0.040

B. 0.050

C 0.49

D. 0.049

11. The probabilities that John and James pass an examination are 34 and 35 respectively. Find the probability of both boys failing the examination

A. 110

B. 210

C. 920

D. 1120

12. Convert (10110.011)base 2 in base 10?

13. In how many ways can kantata be formed?

14. cube of (101) base 2 (i.e cube is thrice 100*101*101)

ENGLISH

Antonyms and Synonyms words that came out.

Frivolous

Accent

Tremendous

Flippant

Callous

Boqus

Complacent

Humdrum

Impertinent

Sagacity

The passage was based on “MOSQUITO AND ANIMAL KINGDOM”

1. What question did Bint ask Mallam Salihu?

2. What did Omar get in his

JAMB exam?

3. Who introduced the snail soup?

4. Where did the police arrest Zaki?

5. How much was given to Tomiwa?

6. How did Habib notice that the girl on the car is not Salma?

Why does Ummi eavesdrop on her children?

Who and who was in the car.

Answer Abib and laraba.

Where was Talle arrested?

How much did Tomiwa give her roommates?

. Snakes and ladders always____me happy these days.

A. makes

B. make

C. made

D. making

. My__is for you to refuse the_of the wicked.

A. advise/advice

B. advice/advise

C. advice/advice

D. advise/advise

Synonyms

. He was supposed to “envelop”

. Bogus- Means fake

. Possible interpretation

He is generous to a fault

Vowel sounds

Bluff

A. rough

Consonant sound

Batch

A. Church

Stress

characterise

continental

Emphatic stress

John CANNOT only sing, he can also dance

CHEMISTRY

1. N2(g) + 3H2(g) = 2NH3(g)

From the equation above, calculate the volume of gaseous produced if 0.5 moles of Nitrogen gas are used under standard condition [G.M.V=22.5dm³]

A. 2.24dm³

B. 22.4dm³

C. 11.2dm³

D. 44.8dm³

The device used to measure the angle of dip is

A. Dip circle

B. Dip protractor

C. Magnetic dip

D. Dip angular

R-L-C circuit, resonance occurs with?

PHYSICS

What is the slope on velocity time graph?

What is the effect of hydrogen bubble i.e. polarization?

A good machine should have what value for it machanical advantage?

CHEMISTRY

Atomic theory

Quantization

Types of reaction

Endothermic and exothermic

Electrolysis (mass of copper)

Gas law(Charles law)

What to consider in the production of salt

Reaction of ethanol and phosphorus 5 oxide

Monomer of polyvinyl chloride is called?

Tin is extracted from cassiterite by ?

Consequences of dispersion of light is?

Compound microscope can produce?

Slope of a velocity time graph is?

According to kinetic molecular model in gasses is?

Pressure in a liquid increases with ?

One question asked for the structure of a neuron

The vertebrae present at the neck region is……

The splash zone is found in….

Yellow fever is transmitted by which vector

A wave equation will be given where you have to get the wave number… Thisone was really simple

In English,antonym of invigorating

Birds moving away from their habitat due to unfavorable climate conditions Is what type of adaptation?

Air spaces are found in what structure of a plant cell

A) palisade layer

B)epidermis

C)spongy layer

D)cuticle(not sure about this option)

The part of a flower that attracts pollinating agent is called? A. Sepal B. Petal

Oxygen is necessary for the germination of seed because? To active the enzymes or so

A fruit produces from a single ovary and multiple carpels is called? A indehiscebt B aggregate C composite D simple fruits

A bus initially moves from rest to 40M in 2mins. Calculate its acceleration… The answer is 4

Maths

If the value of log 3=0.47 and log 2= 0.30 .find log 5 all in base 10

2. They asked about the perimeter of a sector having radius of 10cm and @ as 60

3. Find the mean deviation of the numbers 2,5(x+2),7,(x+1) if their mean is equal to 6 .

The instrument used for viewing the sun is called a) telescope b)helioscope✅

An example of a solid gas mixture is (All I know for this one Is the answer is smoke)

Use Of English JAMB Day 1 Questions from some candidates for 2024
1. About the first meeting of Ummi with the H.O.D

2. The register was about government and lawmakers stuff

3. Under Synonyms and Antonyms: ferocious, prodigious, lynch, exorbitant

4. The questions from the life-changer were centred around Ummi: What happened during her registration. The event with her HOD and the atmosphere.

5. Questions on stress, emphatic stress, antonyms and synonyms, vowels and consonants, lexis and structure and a comprehension passage

6. We were given a comprehension about group studying

7. We were given a register about arms and tiers of government

8. When Ummi went to the HOD’s office Dr. Samuel Johnson

9. After Ummi used the HOD’S toilet, she felt…

10. When the HOD told Ummi your welcome my dear, Ummi felt…

11, IDIOM: What it means to be ‘dressed to the nine?’

12. IDIOM: what it means to ‘hit the hay’?

13. All the questions came out from Ummi’s meeting with Dr Samuel Johnson

14. Why did Ummi lie to the HOD that she was pressed?

15. Why didn’t Ummi tell the HOD that she was married?

16. Ummi described the way girls dressed in the University as

17. Whom did Salma compare the University lecturers to?

18. In HOD’s Office, why Ummi didn’t sit down until she was asked to

19. How did Ummi feel after using the toilet

20. the HOD commended Ummi’s? 21. Ans pattern of dressing 22. 2. After Ummi used the toilet he felt?

23. Ans. Still uncomfortable and embarrassed

24. 3. Ummi was wearing what in the HOD office?

25. Ans. A decent dress but not on her Hijab… This one was tactful, read carefully all the options

26. The HOD’s salutation Made Ummi? 27. Options A & B are off

28. But options C & D still confusing me till now

29. C. Suspicious

30. D. Discomfit

31. “One does not volunteer for questions unless asks from’ was said by who? Ans Ummi

*QUESTIONS FROM TODAY’S JAMB EXAM*

Biology
1. Dental formula of man consist of (A) i 2/2, c2/2, pm2/2, m3/3 (B) i1/1, c2/2, pm2/2, m3/3 (C)
i2/2, c1/1, pm3/2, m2/2 (D) i2/2, c1/1, pm2/2, m2/2 (E) i2/2, c1/1, pm2/2, m3/3🔥

2. During digestion of food, passage of chyme through the duodenum enables it to become a
watery liquid called__ (A) Digested food (B) Chymatic product (C) Chyle🔥 (D) Soluble
food (E) Dissolved food

3. Emulsification of fat and oils is caused by__ (A) Lipase (B) Ptyalin (C) Trypsin (D)
Maltase (E) Bile🔥

4. Every mammal has (A) One Kidney (B) Two pairs of Kidneys (C) One pair of Kidneys🔥 (D) Four
Kidneys (E) None of the above

5. Faeces is removed from the body in a process called (A) Digestion (B) Egestion 🔥(C) Elimination
(D) Excretion (E) Evacuation

6. Glomerulus is found in the__ (A) Ovary (B) Testes (C) Brain (D) Kidney 🔥e).
Stomach

7. In the respiratory system of man, diffusion of gases takes place in (A) Trachea (B) Bronchi (C)
Alveoli 🔥(D) Bronchioles (E) None of the above

8. Incisors are used for (A) Tearing food (B) Cutting food 🔥(C) Grinding food (D) Shearing food (E)
Crushing food

9. Nematocysts are produced by special cells found in (A) Nematodes (B) Annelids (C)
Platyhelminthes (D) Cnidarians (Coelenterates)🔥 (E) Arthropods

10. One of the following is not a function of the skin (A) Excretion (B) Protection (C) Homeostasis
(D) Reproduction🔥(E) Absorption of vitamin D
Like 10 Dislike 0 2 hours ago BIOLOGY QUESTION

1. Dental formula of man consist of (A) i 2/2, c2/2, pm2/2, m3/3 (B) i1/1, c2/2, pm2/2, m3/3 (C)
i2/2, c1/1, pm3/2, m2/2 (D) i2/2, c1/1, pm2/2, m2/2 (E) i2/2, c1/1, pm2/2, m3/3🔥

2. During digestion of food, passage of chyme through the duodenum enables it to become a
watery liquid called__ (A) Digested food (B) Chymatic product (C) Chyle🔥 (D) Soluble
food (E) Dissolved food

3. Emulsification of fat and oils is caused by__ (A) Lipase (B) Ptyalin (C) Trypsin (D)
Maltase (E) Bile🔥

4. Every mammal has (A) One Kidney (B) Two pairs of Kidneys (C) One pair of Kidneys🔥 (D) Four
Kidneys (E) None of the above

5. Faeces is removed from the body in a process called (A) Digestion (B) Egestion 🔥(C) Elimination
(D) Excretion (E) Evacuation

6. Glomerulus is found in the__ (A) Ovary (B) Testes (C) Brain (D) Kidney 🔥e).
Stomach

7. In the respiratory system of man, diffusion of gases takes place in (A) Trachea (B) Bronchi (C)
Alveoli 🔥(D) Bronchioles (E) None of the above

8. Incisors are used for (A) Tearing food (B) Cutting food 🔥(C) Grinding food (D) Shearing food (E)
Crushing food

9. Nematocysts are produced by special cells found in (A) Nematodes (B) Annelids (C)
Platyhelminthes (D) Cnidarians (Coelenterates)🔥 (E) Arthropods

10. One of the following is not a function of the skin (A) Excretion (B) Protection (C) Homeostasis
(D) Reproduction🔥(E) Absorption of vitamin D
[

*CHEMISTRY* 🤌🤌

1. Forces that arise as a result of the mobility of electrons include:

– D. Van der Waals forces

2. Cellulose and starch are classified as:
– D. Carbohydrates

3. Zinc sulphide is used in:
– A. Germicide

4. The radioisotope used in archaeology is:
– C. Carbon-14

5. The hydrogenation of benzene to cyclohexane is called:
– D. Aromatization

6. BaSO4 is:
– B. Insoluble salt

7. CxH12…. what is x in the alkyne of this compound.
– B. 6

8. Heating of sodalime with CH3CH2CH2COONa produces:
– C. Pentane

9. The sulphide used in coating electric fluorescent tubes is:
– C. Zinc sulphide

10. Oxidation of a secondary alkanol will give:
– A. Propanoic acid

11. If the pressure is decreased in the reaction PCl5(g) -> PCl3(g) + Cl2(g), the yield will increase for:
– B. PCl3

12. In the presence of water, anhydrous cobalt(II) chloride turns:
– C. Blue to pink

13. The Van der Waals’ forces are dominant intermolecular forces in:
– A. Ammonium chloride

14. The method suitable for separating suspended particles in a liquid is:
– C. Centrifugation

15. Silica gel when exposed to air turns liquid. What kind of substance is it?
– A. Deliquescent

16. The laws that form the general gas equation are:
– A. Boyle’s and Charles law

17. The IUPAC name for the compound HOCH2CH2CH2OH is:
– B. Pentan-1,2-diol

18. The highest-octane number is typically found in:
– B. Branched chain aliphatic compounds

19. The gas that can best be collected by downward displacement of air is:
– C. Chlorine

20. The rate of a chemical reaction is not affected by:
– A. Color

21. The true statement about the electrochemical series is:
– A. Electropositivity of metals increases down the series

22. Common salt NaCl purity can be determined by:
– B. Melting point

23. An isotope with an atomic number of 15 and a mass number of 31 contains:
– B. 15 protons

24. The purest form of natural water is:
– A. Rainwater

25. Vigorous oxidation of primary alcohol yields:
– C. Alkanoic acids

When a red rose is observed in blue light, what color does the observer see?

What is the first organ that develop in a fetus?

A) liver
B) heart
C) brain
D) kidney

Answer is B heart

Which cells play a role in the body defense

A) erythrocytes
B) thrombocytes
C) leucocytes
D) basophil

Answer is C leucocytes✅✅✅✅

How many true ribs are present in the human body ?

A) 5
B) 6
C) 7
D) 8

Answer is C 7

Lack of oxygen in the tissue is called?

A) anaxia
B) hypoxia
C) cynosis
D) anorexia

Answer is B hypoxia

Which of the following has oxygenated blood?

A) renal veins
B) pulmonary veins
C) pulmonary arteries
D) hepatic portal vein

Answer is B pulmonary veins

The time duration of one heart beat is?

A) 0.2secs
B) 0.4secs
C) 0.8secs
D) 0.6secs

Answer is C 0.8secs

The acid found in the stomach is .

A) nitric
B) acidic
C) hydrochloric
D) sulfuric

What is used as a deoxidant in steel industry?

22) What is the trend for ionization energy across a period in the periodic table?
A. Increases from left to right.✅
B. Remains constant
C. Varies randomlyg
D. Decreases from left to right

23) Which type of chemical combination involves the transfer of electrons from one atom to another, resulting in the formation of oppositely charged ions?
A. Ionic bonding✅
B. Hydrogen bonding
C. Covalent bonding
D. Metallic bonding

24) Which of the following alkanes has a straight-chain structure?
A.Cyclopentane (C5H10)
B. Isobutane (C4H10)
C. Butane (C4H10)
D. Pentane (C5H12)✅

25) What is the product of the electrolysis of aqueous sodium chloride (NaCl) using inert electrodes?
A. Hydrogen gas at the cathode and chlorine gas at the anode✅
B. Hydrogen gas at the cathode and oxygen gas at the anode
C. Sodium metal at the cathode and chlorine gas at the anode
D. Sodium metal at the cathode and oxygen gas at the anode

26) When an acidic solution is diluted, what happens to its pH?
A. It depends on the specific acid
B. It decreases
C. It remains the same
D. It increases✅

27) Which of the following factors does NOT affect the rate of a chemical reaction?
A. Concentration of reactants
B. Presence of a catalyst
C. Molecular weight of products✅
D. Temperature

28) Which organic compound is responsible for the characteristic aroma of fruits?
A. Alkane
B. Alkyne
C. Ester✅
D. Amine

29) What is the molar mass of water (H2O)?
A. 18 g/mol✅
B. 22 g/mol
C. 16 g/mol
D. 12 g/mol

30) What is the chemical formula of rust, which is formed on the surface of iron in the presence of oxygen and moisture?
A. Fe3
O4
B. FeO
C. Fe(OH)3
D. Fe2
O3✅
31) How many pi (π) bonds are there in an alkene with six carbon atoms?
A. 4✅
B. 6
C. 5
D. 3

32) What is the principal ore of iron, from which iron is extracted?
A. Calcite
B. Bauxite
C. Magnetite
D. Hematite✅

33) Which group does calcium belong to in the periodic table?
A. Alkaline earth metals✅
B. Halogens
C. Alkali metals
D. Noble gases

34) Which of the following is a primary constituent of crude oil?
A. Pentane✅
B. Ethanol
C. Heptane
D. Methane

35) What is the main source of carbon monoxide (CO) in urban areas?
A. Volcanic eruptions
B. Vehicle emissions✅
C. Forest fires
D. Industrial processes

36) What is the empirical formula of a compound containing 40.00% carbon, 6.67% hydrogen, and 53.33% oxygen by mass?
A. C4H8O4
B. CH2O✅
C. C2H4O2
D. C3H6O3

37) Which separation technique is used to separate different pigments in a mixture based on their affinity for a stationary phase and a mobile phase?
A. Chromatography✅
B. Filtration
C. Decantation
D. Distillation

38) What is the common name for ethanoic acid?
A. Acetic acid✅
B. Butyric acid
C. Propionic acid
D. Formic acid

39) What type of reaction is involved in the formation of alkanols from alkenes?
A. Elimination reaction
B. Redox reaction
C. Substitution reaction
D. Addition reaction✅

40) What is the mass percentage of carbon (C) in methane (CH4)? (The molar mass of carbon is approximately 12 g/mol.)
A. 25%
B. 12%
C. 75%✅
D. 50%

41) Which of the following is a common property of non-metals?
A. Exist as solids at room temperature
B. Tend to gain electrons in chemical reactions✅
C. High thermal conductivity
D. Readily form cations in chemical reactions

42) What is the symbol used to represent an alpha particle?
A. α✅
B. γ
C. δ
D. β

43) When a substance is oxidized, it
A. Loses electrons✅
B. Gains oxygen atoms
C. Gains electrons
D. Loses protons (H+ ions)

44) A blue litmus paper turns red when dipped into a solution. What does this indicate about the solution?
A. The solution is basic
B. The solution is neutral
C. The solution is acidic✅
D. The litmus paper is faulty

45) Which of the following compounds is an example of an electrovalent bond?
A. NaCl (sodium chloride)✅
B. CO2 (carbon dioxide)
C. H2O (water)
D. CH4 (methane)

46) If gas A has a molar mass of 32 g/mol and gas B has a molar mass of 64 g/mol, what is the ratio of their diffusion rates?
A. 2:1✅
B. 1:2
C. 1:1
D. 1:4

47) The contact process is used for the industrial production of
A. sulfuric acid (H2SO4)✅
B. Hydrochloric acid (HCl)
C. Sodium hydroxide (NaOH)
D. Calcium oxide (CaO)

48) Which of the following is a unique property of water compared to other liquids?
A. It is a poor solvent
B. It does not evaporate
C. It expands when freezing✅
D. It has a low heat capacity

49) Sodium reacts vigorously with water to produce
A. Sodium chloride (NaCl) and oxygen gas (O2)
B. Sodium nitrate (NaNO3) and water (H2O)
C. Sodium hydroxide (NaOH) and hydrogen gas (H2)✅
D. Sodium oxide (Na2O) and hydrogen gas (H2)

50) At room temperature and standard pressure, chlorine gas is in which state of matter?
A. Plasma
B. Solid
C. Liquid
D. Gas✅