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.

2,061.

Nuclear reactions can be used in the following except

A.

gauging the thickness of objects

B.

making atomic bombs

C.

curing cancer

D.

generating electricity

E.

purifying water

Correct answer is E

No explanation has been provided for this answer.

2,062.

Which of the following is normally used for drying ammonia gas?

A.

Concentrated tetraoxonitrate (Vl) acid

B.

Calcium oxide

C.

anhydrous calcium chloride

D.

phosphorus (V) oxide

E.

anhydrous copper (ll) tetraoxosulphate (VI)

Correct answer is B

No explanation has been provided for this answer.

2,063.

Which of the following explains why trioxonitrate (V) acid is not used for preparing hydrogen from metals?

A.

it is volatile

B.

it is strongly oxidizing

C.

it forms a layer of oxide on the metal

D.

trioxonitrate (V) salts are soluble in water

E.

it renders the metals passive

Correct answer is B

No explanation has been provided for this answer.

2,064.

To what temperature must a gas be raised from 273K in order to double both its volume and pressure?

A.

298k

B.

300k

C.

546k

D.

819k

E.

1092k

Correct answer is E

No explanation has been provided for this answer.

2,065.

Which of the following is not correct of glucose and fructose?They

A.

are structural isomers

B.

reduce fehling's solution

C.

can be obtained by the hydrolysis of starch

D.

are readily fermented by enzymes

E.

are soluble in water

Correct answer is C

No explanation has been provided for this answer.