Chemistry Standard 12>Chapter 3 - Ionic Equilibria>Exercises>Q 4

MEDIUM

12th Maharashtra Board

IMPORTANT

Earn 100

Define $pH$ and $pOH$ . Derive relationship between $pH$ and $pOH$ .

Important Questions on Ionic Equilibria

EASY

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 3 - Ionic Equilibria>Exercises>Q 4

What is meant by hydrolysis? A solution of

{CH}_{3} {COONH}_{4}

is neutral, why?

MEDIUM

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 3 - Ionic Equilibria>Exercises>Q 4

Dissociation of

HCN

is suppressed by the addition of

HCl

. Explain.

HARD

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 3 - Ionic Equilibria>Exercises>Q 4

Derive the relationship between degree of dissociation and dissociation constant in weak electrolytes.

HARD

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 3 - Ionic Equilibria>Exercises>Q 4

Sulfides of cation of group II are precipitated in acidic solution

(H_{2} S + HCl)

whereas sulfides of cations of group IIIB are precipitated in ammoniacal solution of

H_{2} S

. Comment on the relative values of solubility product of sulfides of these.

MEDIUM

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 3 - Ionic Equilibria>Exercises>Q 4

Solubility of a sparingly soluble salt get affected in presence of a soluble salt having one common ion. Explain.

MEDIUM

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 3 - Ionic Equilibria>Exercises>Q 4

The

pH

of rain water collected in a certain region of Maharashtra on particular day was

5.1

. Calculate the

H^{\oplus}

ion concentration of the rain water and its percent dissociation.

EASY

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 3 - Ionic Equilibria>Exercises>Q 4

Explain the relation between ionic product and solubility product to predict whether a precipitate will form when two solutions are mixed?