Question

(a) Among the hydrides of group 15, write the hydride (i) Which is the strongest reducing agent.
(ii) Which has maximum bond angle.
(iii) Which is most thermally stable.
(b) Draw the structure (i) NH3 and (ii) H2S2O7

Answer 1

Explanation:

H2Te is a strong reducing agent because of low bond dissociation enthalpy

(ii) H2O has maximum bond angle, because of small size and high electronegativity of oxygen, bond pair–bond pair repulsion is more.

(iii) H2O is most thermally stable, because of high bond dissociation enthalpy.

(b) S + 2H2SO4 \rightarrow 3SO2 + 2H2O

Cl2 + NaOH \rightarrow NaCl + NaOCl + H2O