Chemical Bonding and Molecular Structure

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

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

The correct geometry and hybridization for XeF4 are

1. octahedral, sp3d2
2. trigonal bipyramidal, sp3d
3. planar triangle, sp3d3
4. square planar, sp3d2

Among the following, which one is a wrong statement ?

1. PH5 and BiCl5 do not exist.
2. p -d bonds are present in SO2.
3. SeF4 and CH4 have same shape.
4. I3+ has bent geometry.

In which of the following pairs, both the species are not isostructural ?

1. Diamond, Silicon carbide
2. NH3, PH3
3. XeF4, XeO4
4. SiCl4, PCl4+

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