[MP PMT 1995]
A) 12
B) 63
C) 53
D) 40
Correct Answer: B
$ \begin{matrix} \underset{|}{\mathop{COOH}} \\ COOH \\ \end{matrix} $ . $ 2H_2O $
$ \to \ 126 $ is molecular wt.
$ \therefore Equivalentwt\text{.}=Molecularwt\text{.}/2=63 $
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