NEET Chemical Bonding and Molecular Structure — Set 5

Question 1

The number of pi bonds in $ \ce{C6H6} $ (benzene) is:

Accepted Answer

In benzene ($ \ce{C6H6} $), there are 6 $ \ce{C-C} $ sigma bonds, 6 $ \ce{C-H} $ sigma bonds, and 3 pi bonds from alternating double bonds in its ring structure.

Question 2

In which compound does the central atom have a lone pair affecting its geometry?

Accepted Answer

In $ \ce{NH3} $, nitrogen has one lone pair in its $ sp^3 $ hybridized state, reducing the bond angle to 107° and giving a pyramidal shape.

Question 3

Which molecule has a bond angle of approximately 180° due to a triple bond and no lone pairs on the central atom?

Accepted Answer

In $ \ce{C2H2} $ (ethyne), each carbon is $ sp $ hybridized with a triple bond, resulting in a linear shape and 180° bond angle.

NEET Chemistry: Chemical Bonding and Molecular Structure — Practice Set 5

Q1. The number of pi bonds in \( \ce{C6H6} \) (benzene) is:

Q2. In which compound does the central atom have a lone pair affecting its geometry?

Q3. Which molecule has a bond angle of approximately 180° due to a triple bond and no lone pairs on the central atom?

Q4. The shape of \( \ce{SCl2} \) molecule is:

Q5. The hybridization of tellurium in \( \ce{TeF6} \) is:

Q6. Which molecule has a T-shaped molecular geometry?

Q7. Which species is diamagnetic and has a bond order of 3?

Q8. The hybridization of nitrogen in \( \ce{NF3} \) is:

Q9. Which molecule has a tetrahedral electron pair geometry but a bent molecular shape?

Q10. The bond angle in \( \ce{SO2} \) is approximately: