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ALDEHYDES, KETONES AND CARBOXYLIC ACIDS
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NEET
Practice Test 4
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In benzilic acid rearrangement,

  • Solution

In which reaction, > C= O can be reduced to > CH2?

  • Solution

    Wolf-Kishner reduction

The product obtained by the reaction of an aldehyde and hydroxylamine is

Aldehydes and ketones are generally reduced by :

  • Solution

    Aldehydes and ketones are reduced to alkanes by Clemmensen reduction.

Oxalic acid on heating with conc. H2S2O4 produces

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Which of the following compound will show positive silver mirror test ?

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In an alkaline medium, acetaldehyde undergoes:

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    Acetaldehyde has α-H atoms. In alkaline medium it will undergo aldol condensation to produce aldol(β-hydroxyaldehyde).

Cannizzaro reaction occurs with

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    Cannizzaro reaction is given by aldehydes and ketones which do not have α-hydrogen atom. Benzaldehyde(C6H5CHO) does not have α-H atom and hencegives Cannizzaro reaction.

Which of the following is best method for reducing 3-bromopropanal to 1-bromopropane –

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    In Wolf-Kishnerreduction NH_{2}NH_{2}/\overline{OH} is used. Br- can be replaced by OH-.

does not show aldol condensation because

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    (CH3)3C – CHO does not show aldol condensation because it does not contain α-hydrogen atom.

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