Chemical Bonding and Molecular Structure

Which of the following species contains equal number of σ- and π-bonds ?

1. (CN)2
2. CH2(CN)2
3. HCO3-
4. XeO4

Which of the following molecules has the maximum dipole moment?

1. CO2
2. CH4
3. NH3
4. NF3

Which one of the following species has plane triangular shape?

1. N3-
2. NO3-
3. NO2-
4. CO2

XeF2 is isostructural with

1. SbCl3
2. BaCl2
3. TeF2
4. ICl2-

Which of the following is a polar molecule?

1. SiF4
2. XeF4
3. BF3
4. SF4

Which of the following is paramagnetic?

1. CN-
2. NO+
3. CO
4. O2-

Which one of the following molecules contains no bond?

1. SO2
2. NO2
3. CO2
4. H2O

The pair of species that has the same bond order in the following is

1. CO, NO+
2. NO-, CN-
3. O2, N2
4. O2, B2

In which of the following pair both the species have sp3 hybridization ?

1. SiF4, BeH2
2. NF3, H2O
3. NF3, BF3
4. H2S, BF3

In which of the following ionization processes the bond energy increases and the magnetic behaviour changes from paramagnetic to diamagnetic.

1. O2 O2+
2. C2 C2+
3. NO NO+
4. N2 N2+