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0.16 g of a dibasic organic acid require...

0.16 g of a dibasic organic acid required `25cm^(3)` of 0.1 M NaOH for complete neutralization. The molecular mass of the acid is:

A

45

B

90

C

64

D

128

Text Solution

Verified by Experts

The correct Answer is:
D
`N_(1)V_(1)` acid `N_(2)V_(2)` (base) `=0.1xx25=2.5,` E(acid) = `(Wxx1000)/(NV)=(0.16xx1000)/(2.5)=64`
Molecular mass of acid `=2xx` Equilvalent mass `=2xx64=128`
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