Chemistry - Complete s-block Question with Solution | TestHub

Question Explanation: Question is asking about match the column.

Concept: This question is based on propertise of sodium compound.

Solution:

(P) Solvay's process is used for preparation of ${\mathrm{NaHCO}}_3$ and then heat ${\mathrm{Na}}_2{\mathrm{CO}}_3$

(Q) ${\mathrm{NaHCO}}_3\stackrel{\Delta }{\to }{\mathrm{Na}}_2{\mathrm{CO}}_3+{\mathrm{H}}_2\mathrm{O}+{\mathrm{CO}}_2$

(R) $\mathrm{NaCl}\Rightarrow$ neutral aq. solution.

(S) The mixture of ${\mathrm{Na}}_2{\mathrm{O}}_2$ and dil HCl is soda bleach which is also called oxone.