A) \[{{H}_{2}}O+S{{O}_{3}}\]
B) \[{{H}_{2}}O+S\]
C) \[{{H}_{2}}S{{O}_{4}}+S\]
D) \[~{{H}_{2}}O+S{{O}_{2}}\]
Correct Answer: B
Solution :
In limited supply of oxygen, \[{{\text{H}}_{\text{2}}}\text{S}\] bums with blue flame and S and \[{{\text{H}}_{\text{2}}}\text{O}\] are the main products. \[2{{H}_{2}}S+{{O}_{2}}\xrightarrow[{}]{{}}2{{H}_{2}}O+2S\] Note: In excess of oxygen, \[{{\text{H}}_{\text{2}}}\text{S}\] gives \[\text{S}{{\text{O}}_{\text{2}}}\] and water as main product.
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