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100 cm^(3) of a solution of an acid (mol...

`100 cm^(3)` of a solution of an acid (molar mass =98) containing `29.4g` of the acid per litre were completely neutralized by `90.0 cm^(3)` of aq.NaOH containing 20g of NaOH per `500cm^(3)`.The basicity of the acid is :

A

`3`

B

`2`

C

`1`

D

`4`

Text Solution

Verified by Experts

The correct Answer is:
A
m-eq. of acid m-eq. of base
`N_(1)V_(1)=N_(2)V_(2)`
`(29.4)/((98)/(n))xx100= 90xx((20)/(40)xx(1000)/(500)) n=3`.
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