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Q 12.14     How will you prepare the following compounds from benzene? You may use any inorganic reagent and any organic reagent having not more than one carbon atom

         (v)     p-nitrobenzaldehyde

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Alkylationof benzene gives toluene, which on further reaction with HNO_{3}/H_{2}SO_{4} gives p- nitrotoluene and react it with the the carbon disulphide /CrO_2Cl_{2} followed by acidic hydrolysis to form p-nitrobenzaldehyde.

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manish

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