Chemical Equilibrium Test

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Chemical Equilibrium Test - 64

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Weekly Quiz Competition

Question 1
4 / -1

If the maximum concentration of PbCl₂ in water is 0.01 M at 250C, its maximum concentration in 0.1 M NaCl will be

A
2 × 10^–3 M

B
1 × 10^–4 M

C
1.6 × 10^–2 M

D
4 × 10^–4 M

Solution
Question 2
4 / -1

The maximum amount of BaSO₄ precipitated on mixing BaCl₂ (0.5 M) with H₂SO₄(1M) will correspond to

A
0.5 M

B
1.0 M

C
1.5 M

D
2.0 M
Question 3
4 / -1

The solubility of BaSO₄ in water is 2.33 × 10^–3 g L^–1 . Its solubility product will be (molecular weight of BaSO₄ = 233)

A
1 ×10^–5

B
1 ×10^–10

C
1 ×10^–15

D
1 ×10^–20

Solution
Question 4
4 / -1

The K_sp for M₂SO₄ at 298 K is 1.08 × 10^–4. The maximum concentration of M₊ that could be attained in a saturated solution of this solid at 298 K is

A
3 × 10^–2 M

B
3 × 10^–3 M

C
2.89 × 10^–4 M

D
6 × 10^–2 M

Solution
Question 5
4 / -1

Solubility of an MX₂ type electrolyte is 0.5 × 10^–4 mole/lit , then k_sp of the electrolyte is

A
5 × 10^–12

B
25 × 10^–10

C
1 × 10^–13

D
5 × 10^–13

Solution
Question 6
4 / -1

The solubility product of AgI at 25ºC is 1.0 × 10^–16 Mol² L^–2 The solubility of AgI in 10^–14 N N solution of KI at 25ºC is approximately (in mol L^–1)

A
1.0 × 10^–16

B
1.0 × 10^–12

C
1.0 × 10^–10

D
1.0 × 10^–8

Solution
Question 7
4 / -1

How many ml of 1 M H₂SO₄ is required to neutralise 10 ml of 1 M NaOH solution?

A
2.5

B
5.0

C
10.0

D
20.0

Solution
Question 8
4 / -1

At 25ºC, the dissociation constant of CH₃COOH and NH₄OH in aqueous solution are almost the same. The pH of a solution of 0.01 N CH₃COOH is 4.0 at 25ºC The pH of 0.01N NH₄OH solution at the same temperature would be

A
3.0

B
4.0

C
10.0

D
10.5
Question 9
4 / -1

10 ml of a strong acid solution of pH 2.000 are mixed with 990 ml of a buffer solution of pH = 4.000. The pH of the resulting solution will be

A
4.100

B
4.000

C
4.200

D
3.800
Question 10
4 / -1

The pH of 10^—7 HCl aqueous solution of HCl at 25º C is

A
7.0

B
less than 7

C
more than 7

D
None of the above(a - c)

Solution

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Re-Attempt Weekly Quiz Competition

Chemical Equilibrium Test - 64

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Chemical Equilibrium Test - 64

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SHARING IS CARING

Question 1

2 × 10–3 M

1 × 10–4 M

1.6 × 10–2 M

4 × 10–4 M

Solution

Question 2

0.5 M

1.0 M

1.5 M

2.0 M

Question 3

1 ×10–5

1 ×10–10

1 ×10–15

1 ×10–20

Solution

Question 4

3 × 10–2 M

3 × 10–3 M

2.89 × 10–4 M

6 × 10–2 M

Solution

Question 5

5 × 10–12

25 × 10–10

1 × 10–13

5 × 10–13

Solution

Question 6

1.0 × 10–16

1.0 × 10–12

1.0 × 10–10

1.0 × 10–8

Solution

Question 7

2.5

5.0

10.0

20.0

Solution

Question 8

3.0

4.0

10.0

10.5

Question 9

4.100

4.000

4.200

3.800

Question 10

7.0

less than 7

more than 7

None of the above(a - c)

Solution

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2 × 10^–3 M

1 × 10^–4 M

1.6 × 10^–2 M

4 × 10^–4 M

1 ×10^–5

1 ×10^–10

1 ×10^–15

1 ×10^–20

3 × 10^–2 M

3 × 10^–3 M

2.89 × 10^–4 M

6 × 10^–2 M

5 × 10^–12

25 × 10^–10

1 × 10^–13

5 × 10^–13

1.0 × 10^–16

1.0 × 10^–12

1.0 × 10^–10

1.0 × 10^–8