C6H5OHC6H6 BIn the above reaction sequence A and B are -

Step 1: The distillation of phenol with zinc dust gives nbsp;benzene. nbsp;Step 2: Gatterman Koch Reaction Benzene reacts with CO+HCl in the presence of a ...

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Standard XII

Chemistry

Catalytic Hydrogenation

C6H5OHC6H6 BI...

Question

$C_{6} H_{5} O H (A) - - \to C_{6} H_{6} C O + H C l - ------ \to Anhy. A l C l_{3} (B)$
In the above reaction sequence A and B are -

HCl and benzoic acid

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HCl and benzaldehyde

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Zn powder and benzaldehyde

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Zn powder and benzoic acid

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Solution

The correct option is C Zn powder and benzaldehyde
Step-1: The distillation of phenol with zinc dust gives benzene.
Step-2: Gatterman-Koch Reaction- Benzene reacts with $C O + H C l$ in the presence of anhy. $A l C l_{3}$ to form benzaldehyde.
$C_{6} H_{5} O H Z n - \to C_{6} H_{6} C O + H C l - ------ \to Anhy. A l C l_{3} C_{6} H_{5} C H O$
Hence option (c) is correct.

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Similar questions

Q. The reagents

A

and

B

in the above reaction sequence are:

C_{2} H_{5} - C H = C H_{2} B r_{2} - -- \to C C l_{4} A a l c . K O H - ----- \to (e x c e s s) B

A and B in the above reaction sequence are:

C H | | | C H 2 C H_{3} C O O H - ------- \to H g^{2 +} A \to B + C

In the above sequence of reactions,

B

and

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, respectively, are:

C_{2} H_{5} - C H = C H_{2} B r_{2} - -- \to C C l_{4} A a l c . K O H - ----- \to (e x c e s s) B

A and B in the above reaction sequence are:

C a C_{2} H_{2} O - - \to A 500^{o} C - -- \to C u B A l {C l}_{3} - --- \to C H_{3} C l C

In the above reaction sequence, identify B and C respectively.

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C6H5OH(A)−−→C6H6CO+HCl−−−−−−−→Anhy.AlCl3(B) In the above reaction sequence A and B are -

$C_{6} H_{5} O H (A) - - \to C_{6} H_{6} C O + H C l - ------ \to Anhy. A l C l_{3} (B)$
In the above reaction sequence A and B are -