Chemical Bonding and Molecular Structure

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

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

Arrange the following compounds in increasing order of their dipole moment : HBr, H2S, NF3 and CHCl3

1. HBr < H2S < NF3 < CHCl3
2. H2S < HBr < NF3 < CHCl3
3. NF3 < HBr < H2S < CHCl3
4. CHCl3 < NF3 < HBr < H2S

In which one of the following pairs the central atoms exhibit sp2 hybridization ?

1. BF3 and NO2-
2. NH2- and BF3
3. NH2- and H2O
4. H2O and NO2

The correct increasing order for bond angles among BF3, PF3 and ClF3 is :

1. BF3 = PF3 < ClF3
2. BF3 < PF3 < ClF3
3. ClF3 < PF3 < BF3
4. PF3 < BF3 < ClF3

When A and B are the wave functions of atomic orbitals, then is represented by :

1. A + 2 B
2. A - B
3. A - 2 B
4. A + B

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

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

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the correct answer from the options given below :

1. (A) is false but (R) is true
2. (A) is true but (R) is false
3. Both (A) and (R) are true but (R) is NOT the correct explanation of (A)
4. Both (A) and (R) are true and (R) is the correct explanation of (A)

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

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

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

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

Which of the following is least ionic?

1. CoCl2
2. KCl
3. BaCl2
4. AgCl

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

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

The molecule / ion with square pyramidal shape is

1. PCl5
2. [Ni(CN)4]2-
3. PF5
4. BrF5

Choose the polar molecule from the following:

1. CCl4
2. CO2
3. CH2=CH2
4. CHCl3