In a saturated solution of AgCl, addition of NaCl is made drop by drop in excess. Which graph correctly represents the change?

Options

A.
B.
C.
D.

Answer

B

Explanation

`[Ag^(+)][Cl^(-)] = K_(sp)` or `[Ag^(+)]([K_(sp)])/([Cl^(-)])`
if `[Cl^(-)]` , increases , then too have `K_(sp)` constant and thus `[Ag^(+)]` decreases. Also after sufficient addition of `[Cl^(-)], [Ag^(+)]`, will become almost constant.