Jamb Chemistry Past Questions and Answers

Question 341:

• JAMB 1983

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

Question 342:

• JAMB 1983

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

Question 343:

• JAMB 1983

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

Question 344:

• JAMB 1983

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

Question 345:

• JAMB 1983

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