Q.

1 mole each of K2Cr2O7 and KMnO4 separately reacts with "X" moles and "Y" moles of H2S in an acidic medium to form sulfur. The ratio between "X" and "Y" is 

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a

1:5

b

3:5

c

5:3

d

1:6

answer is B.

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Detailed Solution

1 mole of K2Cr2O7 = 3 moles of H2S

1 mole KMnO4 = 5 moles of H2S

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