The molecule having a high dipole moment among the following is-

1. H₂S

2. BF₃

3. CO₂

4. CCl₄

Allyl cyanide; C₃H₅CN has-

1. 9 sigma bonds and 4 pi bonds

2. 9 sigma bonds, 3 pi bonds and 1 lone pairs

3. 8 sigma bonds and 5 pi bonds

4. 8 sigma bonds, 3 pi bonds and 4 non-bonding electrons.

The hybridization of carbon atoms in C-C single bond of HC≡C-CH=CH₂ is-

1. $s{p}^3-s{p}^3$

2. $s{p}^2-sp$

3. $sp-sp$

4. $s{p}^3-sp$

C-C bond in C₂H₆ undergoes heterolytic fission, the hybridisation of carbon is/are-

1. $s{p}^2$

2. $s{p}^3$

3. $s{p}^2,<mspace\; width="1em"></mspace>s{p}^3$

4. $sp,<mspace\; width="1em"></mspace>s{p}^2$

The number of σ bonds, $\mathrm{\pi }$ bonds, and lone pairs respectively, in the enolic form of acetone is:

1. 9, 1, and 2

2. 8, 2, and 2

3. 10, 1 and 1

4. 9, 2, and 1

Which of the following is not true according to VBT?

The type of bonds present in N₂O₅ are-

1. Only covalent

2. Only ionic

3. Ionic and covalent

4. Covalent and coordinate

Which follows octet rule-

1. FeCl₂

2. AgCl

3. CaCl₂

4. CuCl

The correct order of covalent bond character among
LiCl, BeCl₂, BCl₃ and CCl₄, is:

1. LiCl < BeCl₂ > BCl₃ > CCl₄

2. LiCl > BeCl₂ < BCl₃ < CCl₄

3. LiCl < BeCl₂ < BCl₃ < CCl₄

4. LiCl > BeCl₂ > BCl₃ > CCl₄

Which among the following is the most covalent compound?