Q.

The number of ions formed when cupra ammonium sulphate is dissolved in water
 

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a

 zero

b

1

c

 2

d

4

answer is B.

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Detailed Solution

  • Cuprammonium salt, also known as copper gluconate, is a compound containing copper and ammonia, with the formula Cu(NH3)4​. 
  • In water, it gives two ions, [Cu(NH3)4]2+ and SO42-​.
  • It is an ionic compound of copper and ammonia with the formula Cu(NH3)4​.
  •  A molecule of cuprammonium contains two NH3 molecules, each bound to one Cu and two  SO4 will have  2​ ions. A water solution of cuprammonium salt is blue.
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The number of ions formed when cupra ammonium sulphate is dissolved in water