Group 17 Elements

(i) When

KO%20_%7B2%7D

reacts with water, it gives

(A)%2C%20(B)

and

(C)

as follows:

%5Cunderset%7B(B)%7D%7B2%20KO%20_%7B2%7D%7D%2B2%20H%20_%7B2%7D%20O%20%5Clongrightarrow%20%5Cunderset%7B(A)%7D%7B2%20KOH%20%7D%2B%5Cunderset%7B(B)%7D%7B%20H%20_%7B2%7D%20O%20_%7B2%7D%7D%2B%20O%20_%7B2%7D

(ii) When

(B)

, i.e.

H%20_%7B2%7D%20O%20_%7B2%7D

reacts with iodine in basic medium, it gives

(C)

, i.e.

O%20_%7B2%7D

, as shown below :

%5Cunderset%7B(B)%7D%7B%20H%20_%7B2%7D%20O%20_%7B2%7D%7D%2B%20I%20_%7B2%7D%2B2%20KOH%20%5Clongrightarrow%202%20KI%20%2B2%20H%20_%7B2%7D%20O%20%2B%20%5Cunderset%7B(C)%7D%7BO%20_%7B2%7D%7D

%5Cbecause%20KOH

can not reduce

I%20_%7B2%7D

Chapter Questions
2 MCQs