Question

83. The table shown below gives the bond

dissociation energies of single covalent bonds of

carbon atom with elements A, B and C

BOND E dissociation (Kj.mole-1

)

C-A 240

С-В 328

C-C 276

C-D 485

Which of the following is the smallest atom?

A. A

В. В

С. С

D. D

84. The hybridization of atomic orbitals of N is

N2, NO3 and NH4 are, respectively:

A. sp, sp2

, sp3

B. sp, sp3

, sp2

C. SO2, sp, sp3

D. sp2

, sp3

, sp​

Answer 1

Answer:

The element

′

S

′

has the smallest atoms. It corresponds to strongest C−S bond and maximum bond dissociation energy (485 kJ/mol).

Smaller is the bond length, stronger is the bond and higher is the bond dissociation energy.

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