Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>TEST YOUR GRIP>Q 3

EASY

11th CBSE

IMPORTANT

Earn 100

Which of the following molecule acts as a Lewis acid?

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Important Questions on Ionic Equilibrium in Solution

EASY

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>TEST YOUR GRIP>Q 4

Among the following, the one which can act as both as Bronsted acid as well as Bronsted base is

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>TEST YOUR GRIP>Q 5

The

K_{a}

values of formic acid and acetic acid are respectively

1.77 \times 10^{- 4}

and

1.75 \times 10^{- 5}

. The ratio of acid strength of

0.1 N

acids is

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>TEST YOUR GRIP>Q 6

The correct order of acidity for the following is

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>TEST YOUR GRIP>Q 7

When rain is accompanied by a thunderstorm, the collected rain water will have

pH

value

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>TEST YOUR GRIP>Q 8

An acid

HA

ionizes as

HA ⇌ H^{+} + A^{-}

. The

pH

of

1 .0 M

solution is

5

. Its dissociation constant would be

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>TEST YOUR GRIP>Q 9

What is the percentage hydrolysis of

NaCN

in

N / 80

solution when the dissociation constant for

HCN

is

1.3 \times 10^{- 9}

and

K_{w} = 1.0 \times 10^{- 14}

.

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>TEST YOUR GRIP>Q 10

If

{pK}_{a}

of acetic acid and

{pK}_{b}

of ammonium hydroxide are

4.76

each, the

pH

of ammonium acetate is

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 9 - Ionic Equilibrium in Solution>TEST YOUR GRIP>Q 11

The ionization constant of ammonium hydroxide is

1.77 \times 10^{- 5}

at

298 K

. Hydrolysis constant of ammonium chloride is