MnCl_2 .4 H_2 O (molar mass =198 ~g ~mol^ -1 ) when dissolved in water forms a complex of Mn^ 2+ . An aqueous solution containing 0.400 g of MnCl_2 · 4 H_2 O was passed through a column of a cation exchange resin and

Correct answer: C. [Mn(H_2 O)_5 Cl] Cl No Solution

Olympiad workbook

Exam: Olympiad workbook
Subject: NSEC
Chapter: Coordination Compounds

Olympiad workbook · NSEC · Coordination Compounds

MnCl_2 .4 H_2 O (molar mass =198 ~g ~mol^ -1 ) when dissolved in...

\mathrm{MnCl}_2 .4 \mathrm{H}_2 \mathrm{O}

(molar mass

=198 \mathrm{~g} \mathrm{~mol}^{-1}

) when dissolved in water forms a complex of

\mathrm{Mn}^{2+}

. An aqueous solution containing 0.400 g of

\mathrm{MnCl}_2 \cdot 4 \mathrm{H}_2 \mathrm{O}

was passed through a column of a cation exchange resin and the acid solution coming out was neutralized with 10 mL of 0.20 M NaOH . The formula of the complex formed is

Options

A\left[\mathrm{Mn} \left(\mathrm{H}}_{2} $\mathrm{O}\right)_4$ \mathrm{Cl}}_{2}\right]
B\left[\mathrm{Mn}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_2
C\left[\mathrm{Mn}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{Cl}\right] \mathrm{Cl}
D $\mathrm{Na} \left[\mathrm{Mn} \left(\mathrm{H}_2 \mathrm{O}\right)_3 \mathrm{Cl}_3\right]$

Correct answer

C. \left[\mathrm{Mn}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{Cl}\right] \mathrm{Cl}

Step-by-step solution

No Solution

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