Chemistry questions and answers

Chemistry Questions and Answers

Learn more about the properties, composition, and structure of substances (elements and compounds) with these Chemistry questions and answers. This Test can be used by students preparing for Chemistry in JAMB, WAEC, NECO or Post UTME.

1,781.

Which of the following compounds is used as a gaseous fuel?

A.

CH 3-COO-CH2-CH3

B.

CH 3-CH 2-CH 2-CH 3

C.

CHCI 3

D.

CH 3-CH2-COOH

E.

CH3-C=CH

Correct answer is B

No explanation has been provided for this answer.

1,782.

A positive reaction to Fehling's test indicates the presence of

A.

strach

B.

reducing sugars

C.

oxidizing agents

D.

alkanoic acids

E.

alkanols

Correct answer is B

No explanation has been provided for this answer.

1,783.

The products of the reaction between CH3CH 2COOH and CH3OH are H 2
O and

A.

CH 3CH2COOCH3

B.

CH3CH 2COOCH 2CH 3

C.

CH3CH2CH2COOH

D.

CH3CH2CH2OH

E.

CH3COOH

Correct answer is A

No explanation has been provided for this answer.

1,784.

When alkanols react with sodium, the ga evolved is

A.

hydrogen

B.

oxygen

C.

methane

D.

ethyne

E.

carbon (IV) oxide

Correct answer is A

No explanation has been provided for this answer.

1,785.

Dehydration of ethanol produces

A.

ethanoic acid

B.

propan-1,2,3-triol

C.

ethene

D.

ethanal

E.

methanol

Correct answer is C

No explanation has been provided for this answer.