Chemical Bonding and Molecular Structure

Which one of the following molecules has maximum dipole moment?

1. CH4
2. NF3
3. NH3
4. PF5

Number of molecules/species from the following having one unpaired electron is . O2, O2-1, NO, CN-1, O22-

The correct statement/s about Hydrogen bonding is/are Choose the correct answer from the options given below:

1. A, B, C only
2. A only
3. A, D, E only
4. A, B, D only

The number of species from the following that have pyramidal geometry around the central atom is S2O32-, SO42-, SO32-, S2O72-

1. 4
2. 3
3. 2
4. 1

Number of compounds / species from the following with non-zero dipole moment is . BeCl2, BCl3, NF3, XeF4, CCl4, H2O, H2S, HBr, CO2, H2, HCl

Arrange the bonds in order of increasing ionic character in the molecules. LiF, K2O, N2, SO2 and ClF3 :

1. N2 < SO2 < ClF3 < K2O < LiF
2. ClF3 < N2 < SO2 < K2O < LiF
3. LiF < K2O < ClF3 < SO2 < N2
4. N2 < ClF3 < SO2 < K2O < LiF

The number of molecules/ion/s having trigonal bipyramidal shape is . PF5, BrF5, PCl5, [PtCl4]2-, BF3, Fe(CO)5

Given below are two statements : In the light of the above statements, choose the most appropriate answer from the options given below :

1. Both Statement I and Statement II are true
2. Both Statement I and Statement II are false
3. Statement I is true but Statement II is false
4. Statement I is false but Statement II is true

Select the compound from the following that will show intramolecular hydrogen bonding.

1. [figure]
2. H2O
3. C2H5OH
4. NH3

The linear combination of atomic orbitals to form molecular orbitals takes place only when the combining atomic orbitals Choose the most appropriate from the options given below:

1. B, C, D only
2. A, B, C only
3. B and D only
4. A and C only