Question

when asked Swarup to give examples for halogens he started as florin, chlorine,neon,bromine. by observing the examples given by Swarup find and write which elements is not a halogen among them​

Answer 1

❥︎ANSWER

Fluorine oxidizes chloride ion to chlorine, bromide ion to bromine and iodide ion to iodine respectively.

F2+2Cl−→2F−+Cl2

F2+2Br−→2F−+Br2

F2+2I−→2F−+I2.

Chlorine oxidizes bromide ion to bromine and iodide ion to iodine.

Cl2+Br−→2Cl−+Br2

Cl2+I−→2Cl−+I2

Bromine oxidizes iodide ion to iodine.

Br2+I−→2Br−+I2

But bromine and chlorine cannot oxidize fluoride to fluorine. Hence, fluorine is the best oxidizing agent amongst the halogens. The decreasing order of the oxidizing power of halogens is  F2>Cl2>Br2>I2. 

HI and HBr can reduce sulphuric acid to sulphur dioxide but HCl and HF cannot. Thus, HI and HBr are stronger reducing agents than HCl and HF.

2HI+H2SO4→I

❥︎THANKS

I hope it will help you.