Chemical Bonding and Molecular Structure

Number of compounds from the following with zero dipole moment is . HF, H2, H2S, CO2, NH3, BF3, CH4, CHCl3, SiF4, H2O, BeF2

Number of molecules/ions from the following in which the central atom is involved in sp3 hybridization is . NO3-, BCl3, ClO2-, ClO3-

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

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