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Question

What happens when potassium iodide reacts with acidic solution of potassium dichromate?

A
Potassium sulphate is formed
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B
Chromium sulphate is formed
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C
It liberates iodine
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D
All the above products are formed
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Solution

The correct option is D All the above products are formed
When potassium iodide reacts with acidic solution of potassium dichromate, potassium dichromate liberates I2 from KI.
K2Cr2O7+7H2SO4+6KI4K2SO4+Cr2(SO4)3+3I2+7H2O
Along with iodine, Potassium sulphate and chromium sulphate are also formed

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