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.

2,296.

Which of the following is a neutralization reaction?

A.

Addition of sodium chloride solution to potassium chloride solution

B.

Addition of trioxonitrate (V) acid (nitric acid) to distilled water

C.

Addition of trioxonitrate (V) acid (nitric acid) to tetraoxosulphate (IV) acid (sulphuric acid)

D.

Addition of trioxonitrate (V) acid (nitric acid) to potassium trioxonitrate (V) (potassium nitrate) solution

E.

Addition of trioxonitrate (V) acid (nitric acid) to potassium hydroxide solution

Correct answer is E

No explanation has been provided for this answer.

2,297.

The mass of an atom is determined by

A.

its ionization potential

B.

its electrochemical potential

C.

the number of protons and electrons

D.

the number of neutrons and protons

E.

the number of neutrons and electrons

Correct answer is D

No explanation has been provided for this answer.

2,298.

Which of the following solutions will give a white precipitate with barium chloride solution and a green flame test?

A.

Na2SO4

B.

CuSO4

C.

CaSO4

D.

CaCI2

E.

(NH4)2SO4

Correct answer is B

No explanation has been provided for this answer.

2,299.

A gas that can behave as a reducing agent towards chlorine and as an oxidizing agent toward hydrogen sulphide is

A.

O2

B.

NO

C.

SO2

D.

NH3

E.

CO2

Correct answer is C

No explanation has been provided for this answer.

2,300.

The cracking process is very important in the petroleum industry because it.

A.

gives purer products

B.

yields more lubricants

C.

yields more engine fuels

D.

yields more asphalt

E.

yields more candle wax

Correct answer is C

No explanation has been provided for this answer.