Question

Match the reactants with their respective products formed, on reacting with $HCl$.

• A. $Metalsalt+H_2$
• B. $\mathrm{Metal}\mathrm{salt}+{\mathrm{CO}}_2+H_{2}O$
• C. $\mathrm{Metal}\mathrm{salt}+H_{2}S$
• D. $\mathrm{Metal}\mathrm{salt}+H_{2}O+{\mathrm{SO}}_2$

Answer 1

Metals react with $HCl$ to give metal salt with $H_2$ gas.

$2\mathrm{Na}+2\mathrm{HCl}\to 2\mathrm{NaCl}+H_2$

Metal carbonates react with $HCl$ to give metal salt with $H_{2}O$ and $C{O}_2$ gas.

${\mathrm{Na}}_2{\mathrm{CO}}_3+2\mathrm{HCl}\to 2\mathrm{NaCl}+H_{2}O+{\mathrm{CO}}_2$

Metal sulphites react with $HCl$ to give metal salt with $H_{2}O$ and $S{O}_2$ gas.

${\mathrm{Na}}_2{\mathrm{SO}}_3+2\mathrm{HCl}\to 2\mathrm{NaCl}+H_{2}O+{\mathrm{SO}}_2$

Metal sulphides react with $HCl$ to give metal salt with $H_{2}S$ gas.

${\mathrm{Na}}_{2}S+2\mathrm{HCl}\to 2\mathrm{NaCl}+H_{2}S$