JEE Main 2021 — Chemistry Inorganic Chemistry

2021mcqeasy

Which one of the following when dissolved in water gives coloured solution in nitrogen atmosphere?

Official previous-year question

Held on 26 Aug 2021 · Verified 6 Jul 2026.

Options

A
${\mathrm{Cu}}_{2}{\mathrm{Cl}}_{2}$
B
${\mathrm{ZnCl}}_{2}$
C
${\mathrm{CuCl}}_{2}$
D
$\mathrm{AgCl}$

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Solution

${\mathrm{CuCl}}_{2}$ dissolve in water & give blue coloured solutions

${\mathrm{CuCl}}_{2}+{\mathrm{nH}}_{2}O\rightarrow {\mathrm{Cu}}^{2+}(\mathrm{aq})$

$\mathrm{AgCl}$ not soluble in water.

${\mathrm{Cu}}_{2}{\mathrm{Cl}}_{2}$ is not soluble in water.

${\mathrm{ZnCl}}_{2}$ is soluble but colourless.

${\mathrm{ZnCl}}_{2}+{\mathrm{nH}}_{2}O\rightarrow {\mathrm{Zn}}^{2+}(\mathrm{aq})$ colourless

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JEE Main 2021 — Chemistry Inorganic Chemistry

2021mcqeasy

Which one of the following when dissolved in water gives coloured solution in nitrogen atmosphere?

Official previous-year question

Held on 26 Aug 2021 · Verified 6 Jul 2026.

Options

A
${\mathrm{Cu}}_{2}{\mathrm{Cl}}_{2}$
B
${\mathrm{ZnCl}}_{2}$
C
${\mathrm{CuCl}}_{2}$
D
$\mathrm{AgCl}$

Did you get this right?

Solution

${\mathrm{CuCl}}_{2}$ dissolve in water & give blue coloured solutions

${\mathrm{CuCl}}_{2}+{\mathrm{nH}}_{2}O\rightarrow {\mathrm{Cu}}^{2+}(\mathrm{aq})$

$\mathrm{AgCl}$ not soluble in water.

${\mathrm{Cu}}_{2}{\mathrm{Cl}}_{2}$ is not soluble in water.

${\mathrm{ZnCl}}_{2}$ is soluble but colourless.

${\mathrm{ZnCl}}_{2}+{\mathrm{nH}}_{2}O\rightarrow {\mathrm{Zn}}^{2+}(\mathrm{aq})$ colourless

JEE Main 2021 — Chemistry Inorganic Chemistry

Options

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Solution

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JEE Main Inorganic Chemistry in other years

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JEE Main 2021 — Chemistry Inorganic Chemistry

Options

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

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