Question

4. A solution reacts with zinc granules to give a gas which burns with a pop sound. The solution contains this agent.
(a) Magnesium hydroxide
(b) Sodium carbonate
(c) Sodium chloride
(d) Sodium hydroxide​

Answer 1

sodium hydroxide

because in this reaction H2 is evolved

Answer 2

Answer:

sodium hydroxide ..

zinc react with sodium hydroxide and

gives out hyrdrogen gas with pop sound