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Benzaldehyde can be prepared from benzen...

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

A

HCl, `SnCl_(4)` , Rosenmund reduction

B

CO, HCl, Gattermann-Kocj reaction

C

`CO_(2), H_(2)SO_(4)`, Clemmensen reduction

D

`O_(3)`, alocohol, Wolff-Kishner reduction.

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • What is the molecular formula of the product formed when benzene is reacted with ethyl chloride in presence of anhydrous aluminium chloride?

    A
    `C_(8)H_(10)`
    B
    `C_(6)H_(6)`
    C
    `C_(8)H_(8)`
    D
    `C_(6)H_(5)Cl`

  • What is the molecular formula of the product formed when benzene is reacted with ethyl chloride in presence of anhydrous aluminium chloride?

    A
    `C_(8)H_(10)`
    B
    `C_(6)H_(6)`
    C
    `C_(6)H_(8)`
    D
    `C_(6)H_(5)CI`

  • Ethylene is converted to X on passing through a mixture of an acidified aqueous solution of palladium chloride and cupric chloride. Which of the following reagents readily take part in addition reaction with X ?

    A
    `Br_2`
    B
    `HBr`
    C
    `HCI`
    D
    `HCN`

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    What happens when benzene reacts with n-propylchloride in presence of anhydrous aluminium chloride?

    Which separation techniques will you apply for the separation of the following ? (a) Sodium chloride from its solution in water. (b) Ammonium chloride from a mixture containing sodium chloride and ammonium chloride. ( c) Small pieces of metal in the engine oil of a car. (d) Different pigments from an extract of flower petals. (e) Butter from cards (f) Oil from water (g) Tea leaves from tea. (h) Iron pins from sand (i) Wheat grains from husk. (j) Find mud particles suspended in water.

    Suggest name of another Lewis acid instead of anhydrous aluminium chloride which can be used during ethylation of benzene.

    Among the following statements on the nitration of aromatic compounds, find the number of false statement(s)? i) The rate of benzene is almost the same as that of hexadeuterobenzene. ii) Loss of aromaticity when overset(oplus)NO_2 attacks at ortho and Para position and not at Meta position. iii) Nitrobenzene prepared from benzene by using a mixture of conc. HNO_3 and conc. H_2SO_4 in which HNO_3 act as a base iv) Nitration is an electrophilic substitution reaction.

    The separation technique to separate sodium chloride from its solution in water is

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