Question

The conditions for the combination of atomic orbitals to form molecular orbitals are stated below. Mark the incorrect condition mentioned here.

A. The combining atomic orbitals must have nearly same energy.
B. The combining atomic orbitals must overlap to maximum extent.
C. Combining atomic orbitals must have same symmetry about the molecular axis.
D. $$Pi\left( \pi \right)$$  molecular orbitals are symmetrical around the bond axis.  
Answer :   $$Pi\left( \pi \right)$$  molecular orbitals are symmetrical around the bond axis.
Solution :
$$Sigma$$  molecular orbitals are symmetrical around the bond axis while $$pi$$  molecular orbitals are not symmetrical.

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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