Lessons

Eamcet Chemistry
1 st Year: Unit 1.1(Basics & Concepts) - Weights & Mole concepts

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Q.

In acidic medium Dichromate ion oxidises Ferrous ion to Ferric ion. If the gram-molecular weight of potassium dichromate is 294 gm, its equivalent weight is

View Answer

Correct choice: C

Explanation:

In acid medium oxidation state of Cr changes from +6to+3.Thus change in oxidation state per molecule =2X+3=+6
GEW of K2CrO7=GMW/6 =294/6 =49
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