The heats of neutralization of four acids A,B,C and D are -13.7, -9.4, -11.2 and -12.4 kcal respectively, when they are neutralized by a common base. The acidic character obeys the order:
A
A>B>C>D
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B
A>D>C>B
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C
D>C>B>A
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D
D>B>C>A
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Solution
The correct option is BA>D>C>B The deceasing order of heat of neutralization is A>D>C>B.
The decreasing order of the acidic character is A>D>C>B.
Lower is heat of neutralization, more is heat of dissociation of acid, weaker is acid.