Some Basic Concepts Of Chemistry Question 213

Question: How much water should be added to 200 c.c of semi normal solution of $ NaOH $ to make it exactly deci normal [AFMC 1983]

Options:

A) 200 cc

B) 400 cc

C) 800 cc

D) 600 cc

Show Answer

Answer:

Correct Answer: C

Solution:

$ N _1V _1=N _2V _2 $ ; $ \frac{1}{2}\times 200=\frac{1}{10}\times V _2 $ ; $ V _2=1000ml $

Volume of water added $ =1000-200=800ml $ .



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