Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 9

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Earn 100

Which solution has $pH$ exactly equal to $6$ at $25 ° C$ ?

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Important Questions on Equilibrium

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 10

The

pH

of

1 L NaOH

solution can be changed from

13

to

12

by:

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 11

Which would decrease the

pH

of

25 {cm}^{3}

of a

0.01 M

solution of hydrochloric acid

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 12

1 0^{- 6} M H C l

is diluted to 100 times. Its

p H

is

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 13

The hydrogen ion concentration of

0 .1 M

solution of

C H_{3} C O O H,

which is 30% dissociated, is

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 14

The

{pK}_{a}

of acetic acid is

4.74

, which implies that:

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 15

Equal volumes of

0.1 . M

aniline solution

(K_{b} = 10^{- 10})

are mixed with

0.1 M {NH}_{3}

the solution

(K_{b} = 10^{- 6})

. Then, which of the following is correct?

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 16

The dissociation constants of two acids

{H A}_{1}

and

{H A}_{2}

are

3.0 \times 10^{- 4}

and

1.8 \times 10^{- 5}

respectively. The relative strengths of the acids will be approximately

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 2>Q 17

The

K_{a}

of monobasic acid

A, B

and

C

are

10^{- 6}, 10^{- 8}

and

10^{- 10}

, respectively. The concentrations of

A, B

and

C

are, respectively.

0.1 M, 0.01 M

and

0.001 M

. Which of the following is correct for

pOH

of

A, B & C

?