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Physical Properties of Alkynes

The C - Cl bo...

Question

The C - Cl bond length in chlorobenzene is shorter than that in $C H_{3} - C l$ because

Cl is attached to

s p^{3}

hybridised C atom in

C H_{3} - C l

and attached to

s p^{2}

hybridised C atom in chlorobenzene

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Cl is attached to

s p^{2}

hybridised C atom in

C H_{3} - C l

and attached to

s p^{2}

hybridised C atom in chlorobenzene

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Cl is attached to

s p^{2}

hybridised C atom in

C H_{3} - C l

and attached to

s p^{3}

hybridised C atom in chlorobenzene

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Cl is attached to

s p^{3}

hybridised C atom in

C H_{3} - C l

and attached to

s p^{3}

hybridised C atom in chlorobenzene

No worries! We‘ve got your back. Try BYJU‘S free classes today!

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Solution

The correct option is A Cl is attached to $s p^{3}$ hybridised C atom in $C H_{3} - C l$ and attached to $s p^{2}$ hybridised C atom in chlorobenzene
The $C - C l$ bond length in chlorobenzene is shorter than in $C H_{3} - C l$ . As in chloromethane carbon holding chloride is $s p^{3}$ hybridised, while in chlorobenzene it is $s p^{2}$ hybridized. The delocalisation of electrons by resonance in chlorobenzene attribute for partial double bond character due to which bond length is shorter than a single bond. Hence the correct answer will be option (a).

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Similar questions

Q. Account for the following.
(i) The

C - C l

bond length in chlorobenzene is shorter than that in

C H_{3} - C l

.
(ii) Chloroform is stored in closed dark brown bottles.

Q. Give reasons:
(i)

C - C l

bond length in chlorobenzene is shorter than

C - C l

bond length in

C H_{3} - C l

.
(ii) The dipole moment of chlorobenzene is lower than that of cyclohexyl chloride.
(iii)

S_{N} 1

reactions are accompanied by racemization in optically active alkyl halides.

C - C l

bond of chlorobenzene in comparison to

C - C l

bond of methyl chloride is:

Q. In phosgene,

C - O

bond length is longer than expected but

C - C l

bond length is shorter than expected. This is due to ____.

Q. Consider the following statements.
I. In

S i M e_{2} C l_{2}

∠ C l - S i - C l

is smaller than

∠ M e - S i - M e

.
II.

∠ M e - O - M e

M e_{2} O

is smaller than

∠ F - O - F

F_{2} O

.
III.

C - C l

bond length of

C H_{3} C l

is shorter than

C - C l

bond length of

C F_{3} C l

.
IV.

C - F

bond length of

C H_{3} F

is greater than

C - F

bond length of

C H_{2} F_{2}

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The C - Cl bond length in chlorobenzene is shorter than that in CH3−Cl because

The C - Cl bond length in chlorobenzene is shorter than that in $C H_{3} - C l$ because