NEET Solved Paper 2017 Question 12
Question: Name the gas that can readily decolourises acidified $ KMnO _4 $ solution:
Options:
A) ${{P }_{2}}{{O} _{5}}$
B) $C{{O}_{2}}$
C) $S{{O}_{2}}$
D) $N{{O}_{2}}$
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Answer:
Correct Answer: C
Solution:
- $ SO _2 $ is readily decolourises acidified $ KMnO _4. $