Q.

The solubility of halogen (X) in water is greatly increased by the addition of its salt. Halogen (X) is

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a

Bromine

b

Chlorine

c

Fluorine

d

Iodine

answer is D.

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Detailed Solution

  • Down  the group solubility of halogen atoms decreases. 
  • Fluorine and chlorine are soluble in water. Br and I dissolve in organic solvents. 
  • Solubility of Iodine in water increases by the addition of its salt KI. 

So, the halogen is I.

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