JEE Main202126 Aug 2021Morning ShiftChemistryd and f Block ElementsActual

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

Options

ACu 2 Cl 2
BZnCl 2
CCuCl 2
DAgCl

Correct answer

C. CuCl 2

Step-by-step solution

CuCl 2 dissolve in water & give blue coloured solutions CuCl 2   +   nH 2 O     →     Cu 2 +   ( aq ) AgCl not soluble in water. Cu 2 Cl 2 is not soluble in water. ZnCl 2 is soluble but colourless. ZnCl 2   +   nH 2 O   →   Zn 2 +   (   aq   )   colourless

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