Question

By putting a few pieces of zinc in a test tube and mixing x substance in it makes y gas. The following are x and y.​

Answer 1

Given :-

By putting a few pieces of zinc in a test tube and mixing x substance in it makes y gas. The following are x and y.

Answer :-

Here, we can take $ x $ be Sulphuric Acid and $ y $ be Hydrogen Gas.

Equation :-

Zn (s) + H 2 SO 4 (g) $ \longrightarrow $ ZnSO 4 (s) + H 2 (Zinc)

Explanation :-

$ ⇢ $ The zinc will react with sulphuric acid forming zinc sulphate dissolved in solution and releasing hydrogen gas.

Answer 2

x is HCl and y is hydrogen gas.

• Zinc is a 3d block metal with 30 electrons. It has filled d orbital.
• When zinc reacts with hydrochloric acid or HCl it releases hydrogen gas.
• The reaction is-
• $Zn+2HCl\rightarrow ZnCl_2+H_2$
• In this reaction, zinc reacts with four moles of hydrochloric acid to form one mole of zinc chloride along with one mole of hydrogen gas.
• Thus x is HCl and y is hydrogen gas.