Which one of the following|Qualitative Analysis|JEEMAIN 2021

JEE MAIN 2021

26-08-21 S1

Question

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

Select the correct option:

$\mathrm{CuCl}_2$

AgCl

$\mathrm{ZnCl}_2$

$\mathrm{Cu}_2 \mathrm{Cl}_2$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

(1) CuCl₂ + nH₂O → Cu²⁺(aq) → blue colour (2) AgCl + nH₂O → insoluble (3) ZnCl₂ + nH₂O → Zn²⁺(aq) → colourless (4) CuCl₂ + nH₂O → insoluble

Question Tags

JEE Main

Chemistry

Hard

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