A) \[\frac{N}{5}\]
B) \[\frac{N}{8}\]
C) \[\frac{N}{15}\]
D) \[\frac{N}{7.5}\]
Correct Answer: B
Solution :
The normality of mixture is as follows: \[{{N}_{1}}{{V}_{1}}+{{N}_{2}}{{V}_{2}}+{{N}_{3}}{{V}_{3}}....=Nr\,Vr\] \[\frac{N}{5}\times 10+\frac{N}{10}\times 30=Nr\times 40\] \[2N+3N=40\,Nr\] \[5N+3N=40\,Nr\] \[Nr=\frac{5N}{40}=\frac{N}{8}\] Hence, the correct option is [b].You need to login to perform this action.
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