JAMB Chemistry Past Questions & Answers - Page 111

551.

Which of the following compound is aromatic?

A.

Benzene

B.

Cyclobutane

C.

Cyclopentane

D.

Hexane

E.

Ethene

Correct answer is A

No explanation has been provided for this answer.

552.

The reaction represented by the equation NaOH(aq) + HCI(aq) → NaCI(aq) + H2O(/)

A.

is a double decomposition

B.

is a neutralization

C.

is reversible

D.

is usually catalysed

E.

attains equilibrium after a few seconds

Correct answer is B

No explanation has been provided for this answer.

553.

The following are uses of sulphur except

A.

manufacture of tetraoxosulphate (VI) acid

B.

prevention of the growth of fungi

C.

vulcanization rubber

D.

manufacture of dyes

E.

coating of steel to prevent rusting

Correct answer is E

No explanation has been provided for this answer.

554.

An acid present in proteins is

A.

lactic acid

B.

amino acid

C.

propanoic acid

D.

palmitic acid

E.

stearic acid

Correct answer is B

No explanation has been provided for this answer.

555.

Equilibrium is said to be attained in reversible reaction when

A.

all the reactants have been used up

B.

all the products have been formed

C.

there is no further change in temperature

D.

the rates of the forward and backward reactions are equal

E.

the rate of formation of the products decreases with time

Correct answer is D

No explanation has been provided for this answer.