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JIPMER 2015

Exam: JIPMER
Year: 2015
Subject: Chemistry
Chapter: Coordination Compounds

JIPMER 2015 · Chemistry · Coordination Compounds

In acidic medium, dichromatic ion oxidises ferrous ion to 'ferric...

In acidic medium, dichromatic ion oxidises ferrous ion to 'ferric ion. If the gram molecular weight of potassium dichromate is 294 g, its gram equivalent weight (in grams) is

In acidic medium, dichromatic ion oxidises ferrous ion to 'ferric ion. If the gram molecular weight of potassium

Options

A $24.5$
B $49$
C $125$
D $250$

Correct answer

B. $49$

Step-by-step solution

In acidic medium,

\mathrm{K}_2 \mathrm{Cr}_2

\mathrm{O}_7

acts as strong oxidising agent and itself gets reduced to

\mathrm{Cr}^{3+}

. <img src="https://cdn-question-pool.Quantrex.app/pyq/jipmer/aQPKZUYGOrrzmP15naBQ85JzcBqHzqEffW3TVvDFiIA.original.fullsize.png"/> Equivalent weight of

\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7 =\frac{\text{ Molecular weight }}{6}=\frac{294}{6}=49

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