Equilibrium Quiz 3

Question 1

Which of the following metal sulphide is precipitated in an acidic medium?

Accepted Answer

CuS

Answer

NiS

Answer

CoS

Answer

MnS

Question 2

The relationship between the solubility and solubility product for silver carbonate is

Accepted Answer

$K_{sp} = 4s^3$

Answer

$K_{sp} = s^2$

Answer

$\sqrt{K_{sp}} = 4s^2$

Answer

$ K^sp = 27S^4$

Question 3

If &lsquo;S&rsquo; is solubility in mol $dm^{-3}$ and $K_{sp}$ is solubility product of $BA_2$ type of salt, then relation between them is

Accepted Answer

$K_{sp} = 4S^3$

Answer

$S = \sqrt{K_{sp}} $

Answer

$K_{sp} = S^3$

Answer

$S = K_{sp}$

Question 4

The addition of solid sodium carbonate to pure water results in

Accepted Answer

an increase in pH

Answer

an increase in $H^+$ ion concentration

Answer

no change in pH

Answer

a decrease in $OH^-$ concentration

Question 5

Which of the following salt, when dissolved in water will hydrolyse ?

Accepted Answer

$NH_4 Cl$

Answer

NaCl

Answer

$KCl$

Answer

$Na_2 SO_4$

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