JAMB Chemistry Past Questions & Answers - Page 199

991.

An organic compound contains 60% carbon, 13.3% hydrogen and 26.7% oxygen. Calculate the empirical formula
rn(C=12,H =1, O=16)

A.

C 5H 12O

B.

C 3H 8O

C.

C 6H 13O 2

D.

C 4H 9O

Correct answer is B

No explanation has been provided for this answer.

992.

Which of the following fraction is used as raw material for the cracking process?

A.

kerosine

B.

lubricating oil

C.

bitumen

D.

diesel oils

Correct answer is D

No explanation has been provided for this answer.

993.

A primary amide is generally represented by the formula

A.

RCOOR

B.

RCONH 2

C.

RCONHR

D.

RCONR 2

Correct answer is B

No explanation has been provided for this answer.

994.

The decarboxylation of ethanoic acid will produce carbon (IV)oxide and

A.

methane

B.

ethane

C.

propane

D.

butane

Correct answer is A

No explanation has been provided for this answer.

995.

The reaction between ammonia and ethyl ethanoate produces

A.

propanol and ethanamide

B.

propanol and propanamide

C.

ethanol and propanamide

D.

ethanol and ethanamide

Correct answer is D

No explanation has been provided for this answer.