Question

The species in which the central atom uses $$s{p^2}$$  hybrid orbitals in its bonding is

A. $$P{H_3}$$
B. $$N{H_3}$$
C. $$CH_3^ + $$  
D. $$Sb{H_3}$$
Answer :   $$CH_3^ + $$
Solution :
From amongst given species $$P{H_3},$$  $$N{H_3}$$  and $$Sb{H_3}$$  are all $$s{p^3}$$ hybridised. Their central atom has both bond pair as well as lone pair of electrons. The lone pair occupy the fourth orbital. $$CH_3^ + $$  has only three pairs of electrons so it is $$s{p^2}$$ hybridised.

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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