JAMB Chemistry Past Questions & Answers - Page 379

1,891.

C2H5OH(aq) → Y
If the above reaction takes place in conc. H2SO4 at 180o, Y represents

A.

CH4

B.

C2H5COOH

C.

C2H4

D.

CH3OCH3

Correct answer is C

No explanation has been provided for this answer.

1,892.

CH3COOH(g) → H4(g) + CO2(g)
The reaction above is

A.

Carboxylation

B.

Decarboxylation

C.

Acidification

D.

Esterification

Correct answer is B

No explanation has been provided for this answer.

1,893.

Vulcanization involves the removal of

A.

A monomer

B.

The single bond

C.

The double bond

D.

A polymer

Correct answer is C

No explanation has been provided for this answer.

1,894.

Which of these reagents can confirm the presence of a triple bond?

A.

Bromine water

B.

Acidified KMnO4

C.

Copper (I) chloride

D.

Bromine gas

Correct answer is C

No explanation has been provided for this answer.

1,895.

A characteristic of the alkane family is

A.

Addition reaction

B.

Elimination reaction

C.

Substitution reaction

D.

Neutralization reaction

Correct answer is C

No explanation has been provided for this answer.