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UTME Chemistry 2005 JAMB Past Questions and Answers, Jamb, Pre-degree, Nursing, Waec, Neco

UTME Chemistry 2005 JAMB Past Questions and Answers, Jamb, Pre-degree, Nursing, Waec, Neco

UTME Chemistry 2005 JAMB Past Questions and Answers

1. Which of the following are structural isomers?

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Options

A) propanoic acid and propan-1, 2-diol

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B) Propanal and propanone

C) Ethanoic acid and propanoic acid

D) Ethan-1, 2-diol and ethanoic acid

The correct answer is B.

2. In the purification of impure samples of ethyl ethanoate synthesized by esterification, concentrated sodium trioxocarbonate (IV) solution is used to remove

Options

A) water

B) basic impurities

C) acidic impurities

D) ethoxyethane

The correct answer is C.

3. How many hydrogen atoms does a single ring cycloalkane have less than the corresponding open-chain alkane?

Options

A) Two

B) Three

C) Four

D) One

The correct answer is A.

4. Equal moles of ethyne and hydrogen iodide react to give

Options

A) CH2 = CH2

B) CH2 – CHI

C) CH3 – CI

D) CH2 = CHI

The correct answer is D.

5. A substance that is used as a ripening agent for fruits is

Options

A) ethene

B) propene

C) methane

D) butane

The correct answer is A.

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