Question

In the reaction $$2PC{l_5} \rightleftharpoons PCl_4^ + + PCl_6^ - ,$$     the change in hybridisation is from

A. $$s{p^3}d\,{\text{to}}\,s{p^3}\,{\text{and}}\,{\text{s}}{p^3}{d^2}$$  
B. $$s{p^3}d\,{\text{to}}\,s{p^2}\,{\text{and}}\,{\text{s}}{p^3}$$
C. $$s{p^3}d\,{\text{to}}\,s{p^3}{d^2}\,{\text{and}}\,{\text{s}}{p^3}{d^3}$$
D. $$s{p^3}{d^2}\,{\text{to}}\,s{p^3}\,{\text{and}}\,{\text{s}}{p^3}d$$
Answer :   $$s{p^3}d\,{\text{to}}\,s{p^3}\,{\text{and}}\,{\text{s}}{p^3}{d^2}$$
Solution :
$$\mathop {2PC{l_5}}\limits_{ \uparrow s{p^3}d} \rightleftharpoons \mathop {PCl_4^ + }\limits_{ \uparrow s{p^3}} + \mathop {PCl_6^ - }\limits_{ \uparrow s{p^3}{d^2}} $$

Releted MCQ Question on
Inorganic Chemistry >> Chemical Bonding and Molecular Structure

Releted Question 1

The compound which contains both ionic and covalent bonds is

A. $$C{H_4}$$
B. $${H_2}$$
C. $$KCN$$
D. $$KCl$$
Releted Question 2

The octet rule is not valid for the molecule

A. $$C{O_2}$$
B. $${H_2}O$$
C. $${O_2}$$
D. $$CO$$
Releted Question 3

Element $$X$$ is strongly electropositive and element $$Y$$ is strongly electronegative. Both are univalent. The compound formed would be

A. $${X^ + }{Y^ - }$$
B. $${X^ - }{Y^{ + \,}}$$
C. $$X - Y$$
D. $$X \to Y$$
Releted Question 4

Which of the following compounds are covalent?

A. $${H_2}$$
B. $$CaO$$
C. $$KCl$$
D. $$N{a_2}S$$

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Chemical Bonding and Molecular Structure


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