Sir i have been doing oc in school for almost 6 months and though i have read ncert yet i get stuck in problums of previous jee papers.

please recomend me strategies as well as sutaible books for organic as rest of my chemestry section is prepared now . please help

'x' gm of a compound A3B2C5 contains 'y' gm of A atoms

 

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how to represent the possible fischer projections for 2-bromohexane