Q. 100 mL of 0.1 N hypo decolourised iodine by the addition of $x$ gram of crystalline copper sulphate to excess of KI. The value of $'x'$ is (molecular wt. of $CuSO_{4},5H_{2}O$ is 250)

A) 5.0 g
B) 1.25 g
C) 2.5 g
D) 4 g
Explanation

The correct answer is Option C: 2.5 g.

A detailed explanation for this question is being prepared.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.