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.

1,821.

Which of the following when heated strongly in air will leave a metal as residue?

A.

Sodium trioxonitrate (V)

B.

Potassium trioxonitrate (V)

C.

Silver trioxonitrate (V)

D.

Lead (ll) trrioxonitrate(V)

E.

Aluminium trioxonitrate (V)

Correct answer is C

No explanation has been provided for this answer.

1,822.

When chlorine is added to slaked lime, the product obtained is

A.

bleaching powder

B.

chlorinated water

C.

hydrochloric acid

D.

oxochlorate (l) acid

E.

trioxochlorate (V) salt

Correct answer is A

No explanation has been provided for this answer.

1,824.

The use of diamond in abrasives is due to its

A.

high melting point

B.

high melting point

C.

lustre

D.

hardness

E.

octahedral shape

Correct answer is D

No explanation has been provided for this answer.

1,825.

Which of the following is used widely in the manufacture of flavours and perfumes?

A.

Alkanoates

B.

Alkanones

C.

Alkanes

D.

Complex sugars

E.

Aliphatic compounds

Correct answer is A

No explanation has been provided for this answer.