plzzz explaiinn how will we get this order...bcozz i think thiss ordwr is wrong acc. to me it should be 256413.....for stability we 1^st consider DISTANCE then NO. OF I GROUP ATTACHED then POWER...so in 2 the distance is more sooo it s stability is less bcozz its -I effect is more....so plzz explain me if i am wrong

'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