A famous pesticide has approx 50% chlorine by mass if formula of pesticide is C(14)H(y)Cl(z). Then possible value of z is A.6 B.5 C.1 D.4

'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