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JAMB 2012 Chemistry Practice Test | UTME Questions & Answers

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Practice JAMB-style 2012 Chemistry questions with instant scoring and clear explanations. Prepare for UTME and boost your score today.Sin descripción disponible.
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Question 41

The isomers of C3H8O are

A)

1‑propanol and 2‑propanol

B)

1‑propanol and 1‑propanol

C)

2‑propanol and 2‑propanone

D)

2‑propanol and 1‑propanol

How to solve?

Question 42

Carbohydrates have the general formula Cx(H2O)y. In which of the following pairs is x not equal to y?

A)

glucose and starch

B)

maltose and starch

C)

sucrose and fructose

How to solve?

Question 43

A compound contains 40.0% C, 6.7% H and 53.3% O. If the molecular mass is 180, its molecular formula is [C = 12, H = 1, O = 16]

A)

CH2O

B)

C3H6O3

C)

C6H6O3

D)

C6H12O6

How to solve?

Question 44

The alkyne that will give a white precipitate with silver trioxonitrate(V) is

A)

CH3CH2C≡CCH2CH3

B)

CH3C≡CCH2CH2CH3

C)

CH3CH2CH2CH2C≡CH

D)

CH3CH2CH2C≡CCH2CH3

How to solve?

Question 45

The saponification of an alkanoate to produce soap and alkanol involves

A)

dehydration

B)

esterification

C)

hydrolysis

D)

oxidation

How to solve?

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