Which of the following series contain a free radical, a nucleophile and an electrophile?
A) Br· BF₃ NH₃
B) NH₃ NO₂⁺ Br₂
C) H₂O Cl· NH₃
D) Cl₂ CH₄ NH₃

'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