Question

The products of the reaction between zinc and dilute Sulphuric acid are:

• A. Zinc sulphate and Oxygen gas
• B. Zinc sulphate and Hydrogen gas
• C. Zinc sulphate, water and Hydrogen gas
• D. Zinc sulphide and Hydrogen gas

Answer 1

The correct option is B

Zinc sulphate and Hydrogen gas

Explanation for the correct option:
(B) Zinc sulphate and Hydrogen gas

• Zinc is more reactive than hydrogen and it displaces Hydrogen from dilute acids.
• Zinc reacts with dilute Sulphuric acid to form Zinc sulphate and Hydrogen gas is evolved from the reaction.
• This is a single displacement reaction of a non-metal by a metal.
• Displacement Reaction: A chemical reaction in which a more reactive element displaces a less reactive element from its compound.
• Both metals and non-metals take part in displacement reactions.
  $\mathrm{Zn}\left(\mathrm{s}\right)+{\mathrm{H}}_2{\mathrm{SO}}_4\left(\mathrm{aq}\right)\to {\mathrm{ZnSO}}_4\left(\mathrm{aq}\right)+{\mathrm{H}}_2\left(\mathrm{g}\right)$
• Thus, The products of the reaction between Zinc and dilute Sulphuric acid are Zinc sulphate and Hydrogen gas.

Hence Option (B) is correct.