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प्रश्न
Out of p-tolualdehyde and p-nitrobenzaldehyde, which one is more reactive towards nucleophilic addition reactions, why?
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उत्तर
P-nitrobenzaldehyde is more reactive towards the nucleophilic addition reaction than p- tolualdehyde as Nitro group is electron withdrawing in nature. Presence of nitro group decrease electron density, hence facilitates the attack of nucleophile. The presence of \[\ce{-CH3}\] leads to +I effect as \[\ce{-CH3}\] is electron releasing group.
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संबंधित प्रश्न
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H2N − NHCONH2/H+
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What is meant by the following term? Give an example of the reaction in the following case.
Acetal
What is meant by the following term? Give an example of the reaction in the following case.
Hemiacetal
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PhMgBr and then H3O+
Predict the products formed when cyclohexanecarbaldehyde reacts with the following reagents.
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Which of the following is the correct representation for intermediate of nucleophilic addition reaction to the given carbonyl compound (A):

(i) 
(ii) 
(iii) 
(iv) 
Identify the compounds A, B and C in the following reaction.
\[\ce{CH3 - Br ->[Mg/ether] (A) ->[(i) CO][(ii) Water] (B) ->[CH3OH/H+][Δ] (C)}\]
Which one of the following gives only one monochloro derivative?
