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Aldehydes, Ketones and Carboxylic Acids

Section: Chemistry

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Question : 10

Total: 71

In the following reactions, P,Q,R and S are the major products.

CH3CH2‌CH(CH3)‌CH2‌CN‌

(i)‌PhMgBr,then‌H3‌O⊕

──────────────▶

(ii)‌PhMgBr,then‌H2‌O

‌P
Ph−H+CH3

(i)‌anhyd.AlCl3

──────────▶

(ii)‌PhMgBr,then‌H2‌O

(Ph‌CH2)2‌Cd

────────▶

(ii)‌PhMgBr,then‌H2‌O

‌R
PhCH2‌CHO‌

(i)‌PhMgBr,then‌H2‌O(ii)‌CrO3,dil.H2SO4

─────────────────────▶

(iii‌HCN)‌‌‌(iv)H2SO4

The correct statement(s) about P,Q,R and S is(are)

[JEE Adv 2023 P1]

Both P and Q have asymmetric carbon(s)
Both Q and R have asymmetric carbon(s)
Both P and R have asymmetric carbon(s)
P has asymmetric carbon(s), S does not have any asymmetric carbon

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