Chemical Bonding and Molecular Structure

Decreasing order of stability of O2, O2-, O2+ and O22- is

1. O22- > O2- > O2 > O2+
2. O2 > O2+ > O22- > O2-
3. O2- > O22- > O2+ > O2
4. O2+ > O2 > O2- > O22-

Which of the following pairs of ions are isoelectronic and isostructural ?

1. SO32-, NO3-
2. ClO3-, SO32-
3. CO32-, SO32-
4. ClO3-, CO32-

The correct bond order in the following species is

1. O2+ < O2- < O22+
2. O2- < O2+ < O22+
3. O22+ < O2+ < O2-
4. O22+ < O2- < O2+

Which of the following options represents the correct bond order ?

1. O2- > O2 < O2+
2. O2- < O2 > O2+
3. O2- > O2 > O2+
4. O2- < O2 < O2+

Maximum bond angle at nitrogen is present in which of the following ?

1. NO2+
2. NO3-
3. NO2
4. NO2-

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