Question

Which contains both polar and non-polar bonds?

• A. $NH_4Cl$
• B. $HCN$
• C. $H_2SO_4$
• D. $CH_4$

Answer 1

Answer: (C)

$H_2SO_4$

Answer 2

Bond length $\frac{1}{Bond\, \, order}$
Bond order : $CO_2 = 2, CO = 3 , CO_3^{2-} = 1 + \frac{1}{3} = \frac{4}{3}$
Therefore, order of bond length is $CO_3^{2-} < CO_2 < CO$