Different between racemic mixture and racemateGive the structure of 2,3-diiodobutane and 2,3diiodobutanoic acidState the R and S configuration of the compound and R and S configuration of the sterioisomers of the compound

'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