Benzaldehyde can be prepared from benzene by passing vapours of _ and ___ in its solution in presence of catalyst mixture of aluminium chloride and cuprous chloride. The reaction is known as:

H C l, S n C l_{4}

, Resenmund reduction

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C O, H C l

, Gattermann - Koch reaction

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C O_{2}, H_{2} S O_{4}

, Clemmensen reduction

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O_{3}

, alcohol, Wolff - Kishner reduction

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Solution

The correct option is B $C O, H C l$ , Gattermann - Koch reaction
Benzaldehyde can be prepared from benzene by passing vapours of $C O$ and $H C l$ in its solution in presence of catalyst mixture of $A l {C l}_{3}$ and $C u C l$ . The reaction is known as Gatterman Koch reaction.

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Similar questions

Reduction of carbonyl group into –CH₂ in presence of Zn-Hg/HCl is an example of:

Q. Complete reduction of benzene-diazonium chloride with

Z n / H C l

gives:

Q. Select the reaction(s) in which

- C = O

group changes to

- C H_{2}

.
A) Clemmensen reduction
B) Wolff-Kishner reduction
C) Aldol condensation
D) Rosenmund reduction

Assertion : Formaldehyde cannot be prepared by Rosenmund's reduction.

Reason : Acid chlorides can be reduced into aldehydes with hydrogen in boiling xylene using palladium or platinum as a catalyst supported on barium sulphate. This is known as Rosenmund's reduction.

Q. When benzene diazonium chloride is treated with cuprous chloride in

H C l

, chlorobenzene is formed. This reaction is called:

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Benzaldehyde can be prepared from benzene by passing vapours of _____ and _______ in its solution in presence of catalyst mixture of aluminium chloride and cuprous chloride. The reaction is known as:

The correct option is B CO,HCl, Gattermann - Koch reactionBenzaldehyde can be prepared from benzene by passing vapours of CO and HCl in its solution in presence of catalyst mixture of AlCl3 and CuCl. The reaction is known as Gatterman Koch reaction.

Benzaldehyde can be prepared from benzene by passing vapours of _ and ___ in its solution in presence of catalyst mixture of aluminium chloride and cuprous chloride. The reaction is known as:

The correct option is B $C O, H C l$ , Gattermann - Koch reaction
Benzaldehyde can be prepared from benzene by passing vapours of $C O$ and $H C l$ in its solution in presence of catalyst mixture of $A l {C l}_{3}$ and $C u C l$ . The reaction is known as Gatterman Koch reaction.