A) \[HN{{O}_{2}}\]
B) \[{{H}_{2}}S\]
C) \[{{H}_{2}}S{{O}_{3}}\]
D) \[SnC{{l}_{2}}\]
Correct Answer: B
Solution :
Hydrogen sulphide \[({{H}_{2}}S)\] acts as strong reducing agent as it decomposes by evolving hydrogen.
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