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TG EAPCET 2024 (Online) 9th May Morning Shift
MCQ (Single Correct Answer)
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The molecular formula of a coordinate complex is $\mathrm{CoH}_{12} \mathrm{O}_6 \mathrm{Cl}_3$. When one mole of this aqueous solution of complex is reacted with excess of aqueous $\mathrm{AgNO}_3$ solution, three moles of AgCl was formed. What is the correct formula of the complex ?
A
$\left[\mathrm{CO}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3$
B
$\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{Cl}_1 \mathrm{Cl}_2 \mathrm{H}_2 \mathrm{O}\right.$
C
$\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_4 \mathrm{Cl}_2\right] \mathrm{Cl}\left(\mathrm{H}_2 \mathrm{O}\right)_2$
D
$\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_3 \mathrm{Cl}_3\right]\left(\mathrm{H}_2 \mathrm{O}\right)_3$
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