Beta Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>EXERCISE-1>Q 78

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Earn 100

The addition of HCl will not suppress the ionisation of:

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Important Questions on Equilibrium

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Beta Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>EXERCISE-1>Q 79

A

50 m l

solution of

p H = 1

is mixed with a

50 m l

solution of

p H = 2

. The

p H

of the mixture will be nearly -

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Beta Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>EXERCISE-1>Q 80

The pH of a solution obtained by mixing

50 mL of 0.4 N HCl

and

50 mL of 0.2 N NaOH

is:

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Beta Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>EXERCISE-1>Q 82

The dissociation constant of two acids

HAX and HAY

are

3 .14 \times 10^{- 4}

and

1 .96 \times 10^{- 5}

respectively. The relative strength of the acids will be approximately:

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Beta Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>EXERCISE-1>Q 83

Which statement/ relationship is correct?

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Beta Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>EXERCISE-1>Q 84

If

50 mL

of

0.2 M KOH

is added to

40 mL

of

0.5 M HCOOH

, the

pH

of the resulting solution is :

(K_{a} = 1.8 \times 10^{- 4})

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Beta Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>EXERCISE-1>Q 85

The correct order of increasing

[H_{3} O^{+}]

in the following aqueous solution is

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Beta Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>EXERCISE-1>Q 86

The sodium salt of a certain weak monobasic organic acid is hydrolysed to an extent of

3 %

in its

0.1 M

solution at

25 ° C

. Given that the ionic product of water is

10^{- 14}

at this temperature, what is the dissociation constant of the acid?

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Beta Question Bank for Engineering: Chemistry>Chapter 5 - Equilibrium>EXERCISE-1>Q 87

What will be the

pH

at the equivalence point during the titration of a

100 mL

0.2

M

solution of

{CH}_{3} COONa

with

0.2 M

solution of

HCl ? K_{a} = 2 \times 10^{- 5}

?