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Engineering
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In the following sequence of reactions,

CH_3CH_2OH\xrightarrow[]{P+I_2}A\xrightarrow[ether]{Mg}B\xrightarrow[]{HCHO}C\xrightarrow[]{H_2O}D

the compound D is

  • Option 1)

    propanal

  • Option 2)

    butanal

  • Option 3)

    n-butyl alcohol

  • Option 4)

    n-propyl alcohol.

 
As we learnt in  Test for alcohols by Victor - Meyer's test - Reagents used  - wherein     Reaction of Haloalkanes with Mg in presence of ether - Grignard reagent is obtained     - wherein   Option 1) propanal This option is Incorrect Option 2) butanal This option is Incorrect Option 3) -butyl alcohol This option is Incorrect Option 4) -propyl alcohol. This option is Correct
Engineering
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The compound formed as a result of oxidation of ethyl benzene by KMnO_4 is

  • Option 1)

    benzyl alcohol

  • Option 2)

    benzophenone

  • Option 3)

    acetophenone

  • Option 4)

    benzoic acid.

 
As we learnt in  Oxidation of Alkyl benzene - The entire side chain of alkyl benzene is oxidised to carboxyl group irrespective of the length of the side chain. - wherein     Option 1) benzyl alcohol This option is incorrect Option 2) benzophenone This option is incorrect Option 3) acetophenone This option is incorrect Option 4) benzoic acid. This option is correct
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