Chemistry - Complete s-block Question with Solution | TestHub

Complete the following reactions,

(i)${\mathrm{H}}_2\left(\mathrm{g}\right)+\mathrm{M}\mathrm{n}\mathrm{O}\left(\mathrm{s}\right)\stackrel{∆}{\to }\mathrm{M}\mathrm{n}\left(\mathrm{s}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{g}\right)$

(ii)$\text{CO}\left(\text{g}\right)+{\text{H}}_2\left(\text{g}\right)\underset{\text{Catalyst}}{\overset{\Delta }{\to }}$

(iii)${\text{C}}_3{\text{H}}_8\left(\text{g}\right)+3{\text{H}}_2\text{O}\left(\text{g}\right)\underset{\text{Catalyst}}{\overset{\Delta }{\to }}$

(iv)$\text{Zn}\left(\text{s}\right)+\text{NaOH}\left(\text{aq}\right)\stackrel{\text{Heat}}{\to }$

After completing the above reactions in the balanced equations the coefficient for H₂(g) may be