If NaOH is titrated HCI, variation of conductance (y-axis) with addition of HCI (x-axis) will be:

Options

A.
B.
C.
D.

Answer

B

Explanation

On addition of `NaOH,H^(+)` combines with `OH^(-)` to form undissociated water and thus faster moving `H^(+)` are replaced by slow moving `Na^(+)` to show decrease in conductance. Addition of `NaOH` at equivalence point will increase conductance abruptly due to free `H^(+)` and `CI^(-)` ions.