If a is a complex constant such that az + az` +a` =0 then:A) a +a`=1B) a +a`=0C) a +a`=-1D) the absolute value of real root is 1

'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