Question

The volumes of `4N HCI` and `10 N HCI` required to make 1 litre of `6N HCI` are
A. 0.75 litre of 10 N HCl and 0.25 litre of 4 N HCl
B. 0.25 litre of 4 N HCl and 0.75 litre of 10 N HCl
C. 0.67 litre of 4 N HCl and 0.33 litre of 10 N HCl
D. 0.50 litre of 4 N HCl and 0.50 litre of 10 N HCl

Answer 1

Correct Answer - C
`N_(1)V_(1)+N_(2)V_(2)=NV`
`4x +10(1-x)=6xx1 , -6x =-4 , x=0.66`