When `Cu^(2+)` solution reacts with excess KI, which of the following statements is correct?

Options

A. Blue precipitate is obtained.
B. Clear brown solution is obtained.
C. Dark brown appcarance in which precipitatc of `Cu_2 l_2` is invisible.
D. Blue solution is obtained.

Answer

C

Explanation

`2Cu^(2+) + 2I^(-) to 2 Cu^(+) to 2Cu^(+) +I_(2) overset("excess"I^(-))to underset("White ppt. (invisible)")(Cu_2 I_2) darr + underset("Darbrown")(I_(3)^(-))`