- A
Solution:
Concept- The premise that we used in this topic is that the majority of metals have the ability to eliminate hydrogen gas when they react with acids. An example of an exothermic reaction is this one. In this kind of reaction, the heat is generated following the reaction.Electrochemical series is a series where metals are arranged in an order of their reactivity or reduction potential. An element present above hydrogen in this series can displace hydrogen from its acids.
In the electrochemical series, Zn lies above hydrogen. Thus Zn can displace hydrogen from its acid as gas. From hydrochloric and sulphuric acid hydrogen gas can be formed. 
On reacting with NaOH in water also hydrogen gas is evolved with sodium zincate. Thus, Zn granules react with all the given options to form hydrogen gas. Hence, the correct answer is option 4.
