Which one of the following molecules contain no $$\pi {\text{ - bond?}}$$
A.
$$C{O_2}$$
B.
$${H_2}O$$
C.
$$S{O_2}$$
D.
$$N{O_2}$$
Answer :
$${H_2}O$$
Solution :
All the molecules have $$O$$ - atom with lone pairs, but in $${H_2}O$$ the $$H $$ - atom has no vacant orbital for $$\pi $$ - bonding. That's why it does not have any $$\pi $$ - bond.
In all other given molecules, the central atom because of the presence of vacant orbitals is capable to form $$\pi $$ - bonds.
Releted MCQ Question on Inorganic Chemistry >> Chemical Bonding and Molecular Structure
Releted Question 1
The compound which contains both ionic and covalent bonds is