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Chemistry
Acidified potassium dichromate is treated with hydrogen sulphide. In the reaction, the oxidation number of chromium
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Q. Acidified potassium dichromate is treated with hydrogen sulphide. In the reaction, the oxidation number of chromium
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A
Increases from $+ 3$ to $+6$
B
Decreases from $+6$ to $+3$
C
Remains unchanged
D
Decreases from $+6$ to $+2$
Solution:
Decreases from $+6$ to $+3.$
