Elements, compounds and mixtures - Jamb Chemistry Past Questions and Answers

Question 1:

• JAMB 1978

Which of the following gases may not be dried with concentrated sulphuric acid?

A. HCl
B. N₂
C. Cl₂
D. SO₂
E. NH₃

Question 2:

• JAMB 1979

If chlorine gas is bubbled into water and then this yellowish-green coloured solution is exposed to bright sunlight for a while

A. The solution will give out chlorine gas and hydrogen chloried gas
B. The solution will produce chlorine gas and oxygen
C. The solution will give out solution will producing hypochloric acid
D. The solution is decomposed giving out oxygen, hydrogen and chlorine
E. The solution will give out oxygen gas leaving behind aqueous hydrochloric acid