First slide

Common ion effect

Question

Which of the following is wrong ?

Easy

A

Degree of dissociation of a weak electrolyte increases with dilution
B

increase in temperature increases the ionisation
C

Strong electrolyte are ionised compeltely even at moderate concentrations.
D

Addition of NH₄Cl to NH₄OH increases the ionisation of the latter.

Solution

Addition of NH₄Cl to NH₄OH will decrease the ionisation of the latter. The phenomenon is named as common-ion-effect.

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