JEE Mains Model Paper 3

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Question : 83 of 90

Marks: +1, -0

Which of the following statements is wrong

An acidified solution of K2Cr2O7 liberates iodine from iodides
In acidic solution dichromate ions are converted to chromate ions
Ammonium di chromate on heating undergoes exothermic decomposition to give Cr2O3
Potassium dichromate is used as a titrant for Fe2+ ions

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