Chemical Bonding and Molecular Structure Quiz-4

The correct order of increasing $C-O$ bond length of $CO, CO_3^{2-},CO_2$ is

The geometry of $H_2S$ and its dipole moment are

The hybridisation of atomic orbitals of nitrogen in $NO_2^+,NO_3^-,$ and $NH_4^+$ are

The molecule which has zero dipole moment is

Which of the following is paramagnetic?

According to MO theory.

In the organic compound $CH_2 = CH - CH _2 - CH_2 C \equiv CH ,$ the pair of hydridised orbitals involved in the formation of $C_2 - C_3$ bond is

Which one of the following molecules is expected to exhibit diamagnetic behaviour?

In $PO_4^{3-}$ion, formal charge on the oxygen atom of P - O bond is 

Hydrogen bond is strongest in