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An aqueous solution of 6.3 g of oxalic a...

An aqueous solution of 6.3 g of oxalic acid dihydrate is made upto 250 mL. The volume of 0.1 N NaOH required to completely neutralise 10 mL of this solution is :

A

`40 mL`

B

`20 mL`

C

`10 mL`

D

`4 mL`

Text Solution

Verified by Experts

The correct Answer is:
a
Equivalent mass of oxalic acid
`=126/2=63`
Normally of exalic acid
`=6.3/63xx1000/250=0.4N`
`underset(("oxalic acid"))(N_(1)V_(1))=underset((NaOH))(N_(2)V_(2))`
`0.4xx10=0.1xxV_(2)`
`V_(2)=(0.4xx10)/(0.1)=40mL`
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