Chemical Bonding and Molecular Structure · Question 19

Among H2S, H2O, NF3, NH3 and CHCl3, identify the molecule (X) with lowest dipole moment value. The number of lone pairs of electrons present on the central atom of the molecule (X) is :

1. 3
2. 2
3. 0
4. 1

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 true
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 false

The correct increasing order of C-H(A), C-O(B), C=O(C) and C N(D) bonds in terms of covalent bond length is :

1. D < C < B < A
2. D < C < A < B
3. A < B < C < D
4. A < D < C < B

Match the List I with List II. Choose the correct answer from the options given below:

1. A-IV, B-III, C-II, D-I
2. A-III, B-IV, C-I, D-II
3. A-II, B-I, C-IV, D-III
4. A-III, B-IV, C-II, D-I

In SO2, NO2- and N3-, the hybridizations at the central atom are respectively :

1. sp2, sp2 and sp2
2. sp, sp2 and sp
3. sp2, sp and sp
4. sp2, sp2 and sp

Which of the following molecule(s) show/s paramagnetic behavior? Choose the correct answer from the options given below:

1. A & C only
2. A & E Only
3. A & D Only
4. B Only

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 correct
2. Both Statement I and Statement II are incorrect
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct

Match the LIST-I with LIST-II Choose the correct answer from the options given below:

1. A-IV, B-I, C-II, D-III
2. A-III, B-I, C-IV, D-II
3. A-II, B-III, C-IV, D-I
4. A-I, B-II, C-III, D-IV

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

A molecule with the formula AX4Y has all its elements from p-block. Element A is rarest, monoatomic, non-radioactive from its group and has the lowest ionization enthalpy value among A, X and Y. Elements X and Y have first and second highest electronegativity values respectively among all the known elements. The shape of the molecule is:

1. Pentagonal planar
2. Square pyramidal
3. Trigonal bipyramidal
4. Octahedral