JEE Main 2023 — Chemistry Inorganic Chemistry

2023integereasy

Total number of moles of AgCl precipitated on addition of excess of ${\mathrm{AgNO}}_{3}$ to one mole each of the following complexes $[\mathrm{Co}{({\mathrm{NH}}_{3})}_{4}{\mathrm{Cl}}_{2}]\mathrm{Cl}$ , $[\mathrm{Ni}{({H}_{2}O)}_{6}]{\mathrm{Cl}}_{2},[\mathrm{Pt}{({\mathrm{NH}}_{3})}_{2}{\mathrm{Cl}}_{2}]$ and $[\mathrm{Pd}{({\mathrm{NH}}_{3})}_{4}]{\mathrm{Cl}}_{2}$ is

Official previous-year question

Held on 25 Jan 2023 · Verified 6 Jul 2026.

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Solution

Silver nitrate on reaction of chloride ion gives silver chloride as precipitate. Chloride ions outside of coordination sphere will only give precipitates. Thus,

$[\mathrm{Co}{({\mathrm{NH}}_{3})}_{4}{\mathrm{Cl}}_{2}]\mathrm{Cl}\Rightarrow$ Gives $1$ mole $\mathrm{AgCl}$

$[\mathrm{Ni}{({H}_{2}O)}_{6}]{\mathrm{Cl}}_{2}\Rightarrow$ Gives $2$ moles $\mathrm{AgCl}$

$[\mathrm{Pt}{({\mathrm{NH}}_{3})}_{2}{\mathrm{Cl}}_{2}]\Rightarrow$ Gives No $\mathrm{AgCl}$

$[\mathrm{Pd}{({\mathrm{NH}}_{3})}_{4}]{\mathrm{Cl}}_{2}\Rightarrow$ Gives $2$ moles $\mathrm{AgCl}$

Total number of moles of $\mathrm{AgCl}=5$ mole.

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JEE Main 2023 — Chemistry Inorganic Chemistry

2023integereasy

Official previous-year question

Held on 25 Jan 2023 · Verified 6 Jul 2026.

Did you get this right?

Solution

Silver nitrate on reaction of chloride ion gives silver chloride as precipitate. Chloride ions outside of coordination sphere will only give precipitates. Thus,

$[\mathrm{Co}{({\mathrm{NH}}_{3})}_{4}{\mathrm{Cl}}_{2}]\mathrm{Cl}\Rightarrow$ Gives $1$ mole $\mathrm{AgCl}$

$[\mathrm{Ni}{({H}_{2}O)}_{6}]{\mathrm{Cl}}_{2}\Rightarrow$ Gives $2$ moles $\mathrm{AgCl}$

$[\mathrm{Pt}{({\mathrm{NH}}_{3})}_{2}{\mathrm{Cl}}_{2}]\Rightarrow$ Gives No $\mathrm{AgCl}$

$[\mathrm{Pd}{({\mathrm{NH}}_{3})}_{4}]{\mathrm{Cl}}_{2}\Rightarrow$ Gives $2$ moles $\mathrm{AgCl}$

Total number of moles of $\mathrm{AgCl}=5$ mole.

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JEE Main Inorganic Chemistry in other years

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Work through every JEE Main Inorganic Chemistry PYQ, year by year.

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JEE Main 2023 — Chemistry Inorganic Chemistry

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Solution

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JEE Main Inorganic Chemistry in other years

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JEE Main 2023 — Chemistry Inorganic Chemistry

Did you get this right?

Solution

Your note

JEE Main Inorganic Chemistry in other years

More JEE Main Inorganic Chemistry questions

Other Chemistry topics for JEE Main

Physical Chemistry

Organic Chemistry

Keep practicing Inorganic Chemistry