Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 51

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What is the percent ionisation of a $0.01 M$ $HCN$ solution: (Given $K_{a} = 6.4 \times 10^{- 9}$ )

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Important Questions on Equilibrium

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 52

Which of the following salts undergo anionic hydrolysis?

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 53

The

pH

of

0.01 {MNH}_{4} Cl

solution is:

[K_{b} ({NH}_{3})] = 2 \times 10^{- 5}

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 54

(i) The smaller the value of

K_{a}

of a weak acid, lesser is the hydrolysis constant of its conjugate base.
(ii) A salt of a strong acid with a strong base does not undergo hydrolysis.

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 55

Which of the following options is correct considering the degree of dissociation

α

to be negligible:

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 56

If

{pK}_{b}

of a weak monoacidic base

>

{pK}_{a}

of a weak monobasic acid, then the solution of the salt of a weak acid and a weak base having equal concentrations of cation and anion will be:

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 57

A

certain weak acid has

Ka = 1.0 \times 10^{- 4}

. Calculate the equilibrium constant for its reaction with a strong base -

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 58

Which of the following mixtures form an acid buffer?

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 59

Which may be added to one litre of water to act as a buffer?