(a) Nitrogen
(b) Hydrogen
(c) Oxygen
(d) Carbon dioxide
Ans. (b) Hydrogen
Explanation: Hydrogen gas is evolved when dilute sulphuric acid is added to zinc granules. The type of reaction taking place is single displacement reaction. Zn(s) + H2SO4(aq) → ZnSO4(aq)+ H2(g)
