Some Basic Concepts Of Chemistry Question 260
Question: A solution of 10 ml $ \frac{M}{10}FeSO _4 $ was titrated with $ KMnO _4 $ solution in acidic medium. The amount of $ KMnO _4 $ used will be [CPMT 1984]
Options:
A) 5 ml of 0.1 M
B) 10 ml of 1.1 M
C) 10 ml of 0.5 M
D) 10 ml of 0.02 M
Show Answer
Answer:
Correct Answer: D
Solution:
$ KMnO _4 $ $ FeSO _4 $
$ \frac{M _1V _1}{n _1} $ = $ \frac{M _2V _2}{n _2} $ ; $ M _1V _1=\frac{n _1}{n _2}M _2V _2 $
$ =\frac{2}{10}\times 10\times \frac{1}{10}=\frac{1}{5}=0.2 $
For , $ M _1V _1=0.02\times 10=\frac{1}{5} $
