JEE MAIN - Chemistry (2006 - No. 8)
CH3Br + Nu- $$\to$$ CH3 - Nu + Br- The decreasing order of the rate of the above reaction with nucleophiles (Nu–) A to D is
[Nu– = (A) PhO–, (B) AcO–, (C) HO–, (D) CH3O–]
[Nu– = (A) PhO–, (B) AcO–, (C) HO–, (D) CH3O–]
A > B > C > D
B > D > C > A
D > C > A > B
D > C > B > A
Explanation
TIPS/Formulae :
The stronger the acid, the weaker the conjugate base formed.
The acid character follows the order :
$$C{H_3}COOH > {C_6}{H_5}OH > {H_2}O > C{H_3}OH$$
The basic character will follow the order
$$C{H_3}CO{O^ - } < {C_6}{H_5}{O^ - } < {O^ - }H < C{H_3}{O^ - }$$
The stronger the acid, the weaker the conjugate base formed.
The acid character follows the order :
$$C{H_3}COOH > {C_6}{H_5}OH > {H_2}O > C{H_3}OH$$
The basic character will follow the order
$$C{H_3}CO{O^ - } < {C_6}{H_5}{O^ - } < {O^ - }H < C{H_3}{O^ - }$$
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