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When HCl is passed over one mole of K(2)...

When HCl is passed over one mole of `K_(2) Cr_(2) O_(7)` , the no. of moles of `Cl_(2)` formed is `"_____________"`.

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The correct Answer is:
3
`K_(2)Cr_(2) O_(7) + 14 HCl rarr 2KCl + 2CrCl_(3) + 7 H_(2)O + 3Cl_(2)`
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