In the Solvay process the following reactions takes place
i) $2{\mathrm{NH}}_3+{\mathrm{H}}_2\mathrm{O}+{\mathrm{CO}}_2\to \left(\mathrm{W}\right)$
ii) $\left(\mathrm{W}\right)+{\mathrm{H}}_2\mathrm{O}+{\mathrm{CO}}_2\to \left(\mathrm{X}\right)$
iii) $\left(\mathrm{X}\right)+\mathrm{NaCl}\to \mathrm{M}+\mathrm{N}$
iv) $\left(\mathrm{M}\right)\stackrel{\mathrm{\Delta }}{⟶}\mathrm{P}\left(\mathrm{S}\right)+\mathrm{Q}\left(\mathrm{v}\right)+\mathrm{R}\left(\mathrm{g}\right)$

Which of the following statement(s) is /are correct.

On adding phenolphthalein indicator to (M) there is no colour change.

M is sparingly soluble in water due to polymeric hydrogen bonding

Compound (W) is more basic than M.

Aqueous solution of P is less basic than (W) or (X) or (M)