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Three solution of HCl having normalities...

Three solution of HCl having normalities 12 N, 6N and 2 N are mixed to obtain a solution of 4 N normality. Which among the following volume ratio is correct for the above three components ?

A

`1:1:5`

B

`1:2:6`

C

`2:1:9`

D

`1:2:4`

Text Solution

Verified by Experts

The correct Answer is:
B
Use Hit & Trial Method.
`N_1V_1+N_2V_2+N_3V_3=N_R(V_1+V_2+V_3)`
`12xx1+6xx2+2xx6=N_R(9)`
`N_R=4`
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