Some Basic Concepts Of Chemistry Question 235

Question: 5 ml of N HCl, 20 ml of $ N/2H _2SO _4 $ and 30 ml of $ N/3HNO _3 $ are mixed together and volume made to one litre. The normality of the resulting solution is [MNR 1991]

Options:

A) $ N/5 $

B) $ N/10 $

C) $ N/20 $

D) $ N/40 $

Show Answer

Answer:

Correct Answer: D

Solution:

$ NV=N _1V _1+N _2V _2+N _3V _3 $

$ N\times 1000=1\times 5+\frac{1}{2}\times 20+\frac{1}{3}\times $ 30 $ =5+10+10=25 $

$ N=0.025=\frac{N}{40} $ .



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