Question

Q. On addition of ammonium chloride to a soln. Of ammonium hydroxide.
A. Dissociation of NH40H increased
B. Conc. Of OH- decreases
C. Conc. Of 0H- increases
D. Concentration of NH+4 and 0H - increases​

Answer 1

Answer:

A.When NH4Cl is added to NH4OH solution, concentration of NH4+ ions increases so the equilibrium shift towards left.So the dissociation of ammonium hydroxide is reduced.

B.Due to the presence of NH4+ in NH4Cl, It suppresses the ionisation of weak base NH4OH to decrease the OH- ion concentration so that higher group cations will not get precipitated. So basic strength of NH4OH decreases.

C.The ionization constant of ammonium hydroxide is 1.77×10-5 at 298 K. ...

I know this much sorry I don't know D. part....