Chemical Equilibrium Test

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Chemical Equilibrium Test - 23

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Weekly Quiz Competition

Question 1
4 / -1

Solubility of Al(OH)₃ = s, K_sp will be

A
108 S³

B
27 S³

C
4 S⁴

D
27 S⁴
Question 2
4 / -1

The solubility of AgI in NaI solution is less than that in pure water because

A
the temperature of the solution decreases

B
solubility product of AgI is less than that of NaI

C
of common ion effect

D
AgI forms complex with NaI
Question 3
4 / -1

The solubility of Pb(OH)₂ in water is 6.7 × 10^-6 M. Its solubility in a buffer solution of pH = 8 would be

A
1.2 × 10^-2

B
1.6 × 10^-3

C
1.6 × 10^-2

D
1.2 × 10^-3
Question 4
4 / -1

The solubility of Sb₂ S₃ in water is 1.0 ×10^-5 mol / L at 298 K. What will be its solubility product ?

A
108 × 10^-25

B
1.0 × 10^-25

C
144 × 10^-25

D
126 × 10^-24
Question 5
4 / -1

A precipitate of AgCl is formed when equal volumes of the following are mixed.
[K_SP for AgCl = 10^-10]

A
10^-4 M AgNO₃ and 10^-7 M HCl

B
10^-5 M AgNO₃ and 10^-6 M HCl

C
10^-5 M AgNO₃ and 10^-4 M HCl

D
10^-6 M AgNO₃ and 10^-6 M HCl

Solution
Question 6
4 / -1

The correct expression for the solubility product of Ca₃(PO₄ )₂ is

A
108 s⁵

B
27 s⁵

C
16 s⁴

D
81 s⁴
Question 7
4 / -1

On adding 0.1 M solution each of [Ag⁺],[Ba²⁺], [Ca²⁺] in a Na₂SO₄ solution species first precipitated is (K_SP BaSO₄ = 10^-11, K_SP CaSO₄ = 10^-6, K_SP AgSO₄ = 10^-5)

A
Ag₂SO₄

B
BaSO₄

C
CaSO₄

D
All of the above
Question 8
4 / -1

In the titration of NaOH and HCl, which of the following indicator will be used ?

A
Methyl orange

B
Methyl red

C
Both (1) and (2)

D
None of these
Question 9
4 / -1

A strong acid is titrated with weak base. At equivalence point, pH will be

A
< 7

B
> 7

C
= 0

D
cannot predict
Question 10
4 / -1

For the titration of solution of oxalic acid and sodium hydroxide, the suitable indicator is

A
phenolphthalein

B
methyl orange

C
any of these

D
None of these

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Chemical Equilibrium Test - 23

Result

Chemical Equilibrium Test - 23

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SHARING IS CARING

Question 1

108 S3

27 S3

4 S4

27 S4

Question 2

the temperature of the solution decreases

solubility product of AgI is less than that of NaI

of common ion effect

AgI forms complex with NaI

Question 3

1.2 × 10-2

1.6 × 10-3

1.6 × 10-2

1.2 × 10-3

Question 4

108 × 10-25

1.0 × 10-25

144 × 10-25

126 × 10-24

Question 5

10-4 M AgNO3 and 10-7 M HCl

10-5 M AgNO3 and 10-6 M HCl

10-5 M AgNO3 and 10-4 M HCl

10-6 M AgNO3 and 10-6 M HCl

Solution

Question 6

108 s5

27 s5

16 s4

81 s4

Question 7

Ag2SO4

BaSO4

CaSO4

All of the above

Question 8

Methyl orange

Methyl red

Both (1) and (2)

None of these

Question 9

< 7

> 7

= 0

cannot predict

Question 10

phenolphthalein

methyl orange

any of these

None of these

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108 S³

27 S³

4 S⁴

27 S⁴

1.2 × 10^-2

1.6 × 10^-3

1.6 × 10^-2

1.2 × 10^-3

108 × 10^-25

1.0 × 10^-25

144 × 10^-25

126 × 10^-24

10^-4 M AgNO₃ and 10^-7 M HCl

10^-5 M AgNO₃ and 10^-6 M HCl

10^-5 M AgNO₃ and 10^-4 M HCl

10^-6 M AgNO₃ and 10^-6 M HCl

108 s⁵

27 s⁵

16 s⁴

81 s⁴

Ag₂SO₄

BaSO₄

CaSO₄