Solubility Equilibria of Sparingly Soluble Salts
CHXI07:EQUILIBRIUM

314947 The addition of \(\mathrm{KCl}\) to \(\mathrm{AgCl}\) decreases the solubility of \(\mathrm{AgCl}\), because

1 \(\mathrm{K}_{\mathrm{sp}}\) of \(\mathrm{AgCl}\) decreases
2 \(\mathrm{K}_{\mathrm{sp}}\) of \(\mathrm{AgCl}\) increases
3 solution becomes unsaturated
4 ionic product exceeds the \(\mathrm{K}_{\mathrm{sp}}\) value
CHXI07:EQUILIBRIUM

314948 If \({\text{1}}{{\text{0}}^{{\text{ - x}}}}\) is the factor by which solubility of \({\rm{AgBr(s)}}\left[ {{{\rm{K}}_{{\rm{SP}}}}{\rm{ = 1}}{{\rm{0}}^{{\rm{ - 10}}}}} \right]\) changes with respect to initial solubility, when it is dissolved in \({\text{0}}{\text{.01}}\,\,{\text{M}}\,\,{\text{NaBr}}\left( {{\text{aq}}} \right)\) solution. The value of \({\text{'x'}}\) is

1 2
2 3
3 4
4 5
CHXI07:EQUILIBRIUM

314949 Assertion :
The ionisation of hydrogen sulphide in water is low in the presence of \(\mathrm{HCl}\)
Reason :
\({{\text{H}}_2}{\text{S}}\) is a weak acid.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI07:EQUILIBRIUM

314950 Which pair will show common ion effect?

1 \(\mathrm{AgNO}_{3}+\mathrm{KNO}_{3}\)
2 \(\mathrm{NaCl}+\mathrm{HCl}\)
3 \(\mathrm{NH}_{4} \mathrm{OH}+\mathrm{NH}_{4} \mathrm{Cl}\)
4 \(\mathrm{BaCl}_{2}+\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}\)
CHXI07:EQUILIBRIUM

314951 In the analysis of III group basic radicals of salts, the purpose of adding \({\mathrm{\mathrm{NH}_{4} \mathrm{Cl}_{(\mathrm{s})}}}\) to \({\mathrm{\mathrm{NH}_{4} \mathrm{OH}}}\) is :

1 to increase the concentration of \({\mathrm{\mathrm{OH}^{-}}}\)ions.
2 to precipitate the radicals of group IV and V .
3 to suppress the dissociation of \({\mathrm{\mathrm{NH}_{4} \mathrm{OH}}}\).
4 to introduce \({\mathrm{\mathrm{Cl}^{-}}}\)ions.
CHXI07:EQUILIBRIUM

314947 The addition of \(\mathrm{KCl}\) to \(\mathrm{AgCl}\) decreases the solubility of \(\mathrm{AgCl}\), because

1 \(\mathrm{K}_{\mathrm{sp}}\) of \(\mathrm{AgCl}\) decreases
2 \(\mathrm{K}_{\mathrm{sp}}\) of \(\mathrm{AgCl}\) increases
3 solution becomes unsaturated
4 ionic product exceeds the \(\mathrm{K}_{\mathrm{sp}}\) value
CHXI07:EQUILIBRIUM

314948 If \({\text{1}}{{\text{0}}^{{\text{ - x}}}}\) is the factor by which solubility of \({\rm{AgBr(s)}}\left[ {{{\rm{K}}_{{\rm{SP}}}}{\rm{ = 1}}{{\rm{0}}^{{\rm{ - 10}}}}} \right]\) changes with respect to initial solubility, when it is dissolved in \({\text{0}}{\text{.01}}\,\,{\text{M}}\,\,{\text{NaBr}}\left( {{\text{aq}}} \right)\) solution. The value of \({\text{'x'}}\) is

1 2
2 3
3 4
4 5
CHXI07:EQUILIBRIUM

314949 Assertion :
The ionisation of hydrogen sulphide in water is low in the presence of \(\mathrm{HCl}\)
Reason :
\({{\text{H}}_2}{\text{S}}\) is a weak acid.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI07:EQUILIBRIUM

314950 Which pair will show common ion effect?

1 \(\mathrm{AgNO}_{3}+\mathrm{KNO}_{3}\)
2 \(\mathrm{NaCl}+\mathrm{HCl}\)
3 \(\mathrm{NH}_{4} \mathrm{OH}+\mathrm{NH}_{4} \mathrm{Cl}\)
4 \(\mathrm{BaCl}_{2}+\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}\)
CHXI07:EQUILIBRIUM

314951 In the analysis of III group basic radicals of salts, the purpose of adding \({\mathrm{\mathrm{NH}_{4} \mathrm{Cl}_{(\mathrm{s})}}}\) to \({\mathrm{\mathrm{NH}_{4} \mathrm{OH}}}\) is :

1 to increase the concentration of \({\mathrm{\mathrm{OH}^{-}}}\)ions.
2 to precipitate the radicals of group IV and V .
3 to suppress the dissociation of \({\mathrm{\mathrm{NH}_{4} \mathrm{OH}}}\).
4 to introduce \({\mathrm{\mathrm{Cl}^{-}}}\)ions.
CHXI07:EQUILIBRIUM

314947 The addition of \(\mathrm{KCl}\) to \(\mathrm{AgCl}\) decreases the solubility of \(\mathrm{AgCl}\), because

1 \(\mathrm{K}_{\mathrm{sp}}\) of \(\mathrm{AgCl}\) decreases
2 \(\mathrm{K}_{\mathrm{sp}}\) of \(\mathrm{AgCl}\) increases
3 solution becomes unsaturated
4 ionic product exceeds the \(\mathrm{K}_{\mathrm{sp}}\) value
CHXI07:EQUILIBRIUM

314948 If \({\text{1}}{{\text{0}}^{{\text{ - x}}}}\) is the factor by which solubility of \({\rm{AgBr(s)}}\left[ {{{\rm{K}}_{{\rm{SP}}}}{\rm{ = 1}}{{\rm{0}}^{{\rm{ - 10}}}}} \right]\) changes with respect to initial solubility, when it is dissolved in \({\text{0}}{\text{.01}}\,\,{\text{M}}\,\,{\text{NaBr}}\left( {{\text{aq}}} \right)\) solution. The value of \({\text{'x'}}\) is

1 2
2 3
3 4
4 5
CHXI07:EQUILIBRIUM

314949 Assertion :
The ionisation of hydrogen sulphide in water is low in the presence of \(\mathrm{HCl}\)
Reason :
\({{\text{H}}_2}{\text{S}}\) is a weak acid.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI07:EQUILIBRIUM

314950 Which pair will show common ion effect?

1 \(\mathrm{AgNO}_{3}+\mathrm{KNO}_{3}\)
2 \(\mathrm{NaCl}+\mathrm{HCl}\)
3 \(\mathrm{NH}_{4} \mathrm{OH}+\mathrm{NH}_{4} \mathrm{Cl}\)
4 \(\mathrm{BaCl}_{2}+\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}\)
CHXI07:EQUILIBRIUM

314951 In the analysis of III group basic radicals of salts, the purpose of adding \({\mathrm{\mathrm{NH}_{4} \mathrm{Cl}_{(\mathrm{s})}}}\) to \({\mathrm{\mathrm{NH}_{4} \mathrm{OH}}}\) is :

1 to increase the concentration of \({\mathrm{\mathrm{OH}^{-}}}\)ions.
2 to precipitate the radicals of group IV and V .
3 to suppress the dissociation of \({\mathrm{\mathrm{NH}_{4} \mathrm{OH}}}\).
4 to introduce \({\mathrm{\mathrm{Cl}^{-}}}\)ions.
CHXI07:EQUILIBRIUM

314947 The addition of \(\mathrm{KCl}\) to \(\mathrm{AgCl}\) decreases the solubility of \(\mathrm{AgCl}\), because

1 \(\mathrm{K}_{\mathrm{sp}}\) of \(\mathrm{AgCl}\) decreases
2 \(\mathrm{K}_{\mathrm{sp}}\) of \(\mathrm{AgCl}\) increases
3 solution becomes unsaturated
4 ionic product exceeds the \(\mathrm{K}_{\mathrm{sp}}\) value
CHXI07:EQUILIBRIUM

314948 If \({\text{1}}{{\text{0}}^{{\text{ - x}}}}\) is the factor by which solubility of \({\rm{AgBr(s)}}\left[ {{{\rm{K}}_{{\rm{SP}}}}{\rm{ = 1}}{{\rm{0}}^{{\rm{ - 10}}}}} \right]\) changes with respect to initial solubility, when it is dissolved in \({\text{0}}{\text{.01}}\,\,{\text{M}}\,\,{\text{NaBr}}\left( {{\text{aq}}} \right)\) solution. The value of \({\text{'x'}}\) is

1 2
2 3
3 4
4 5
CHXI07:EQUILIBRIUM

314949 Assertion :
The ionisation of hydrogen sulphide in water is low in the presence of \(\mathrm{HCl}\)
Reason :
\({{\text{H}}_2}{\text{S}}\) is a weak acid.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI07:EQUILIBRIUM

314950 Which pair will show common ion effect?

1 \(\mathrm{AgNO}_{3}+\mathrm{KNO}_{3}\)
2 \(\mathrm{NaCl}+\mathrm{HCl}\)
3 \(\mathrm{NH}_{4} \mathrm{OH}+\mathrm{NH}_{4} \mathrm{Cl}\)
4 \(\mathrm{BaCl}_{2}+\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}\)
CHXI07:EQUILIBRIUM

314951 In the analysis of III group basic radicals of salts, the purpose of adding \({\mathrm{\mathrm{NH}_{4} \mathrm{Cl}_{(\mathrm{s})}}}\) to \({\mathrm{\mathrm{NH}_{4} \mathrm{OH}}}\) is :

1 to increase the concentration of \({\mathrm{\mathrm{OH}^{-}}}\)ions.
2 to precipitate the radicals of group IV and V .
3 to suppress the dissociation of \({\mathrm{\mathrm{NH}_{4} \mathrm{OH}}}\).
4 to introduce \({\mathrm{\mathrm{Cl}^{-}}}\)ions.
CHXI07:EQUILIBRIUM

314947 The addition of \(\mathrm{KCl}\) to \(\mathrm{AgCl}\) decreases the solubility of \(\mathrm{AgCl}\), because

1 \(\mathrm{K}_{\mathrm{sp}}\) of \(\mathrm{AgCl}\) decreases
2 \(\mathrm{K}_{\mathrm{sp}}\) of \(\mathrm{AgCl}\) increases
3 solution becomes unsaturated
4 ionic product exceeds the \(\mathrm{K}_{\mathrm{sp}}\) value
CHXI07:EQUILIBRIUM

314948 If \({\text{1}}{{\text{0}}^{{\text{ - x}}}}\) is the factor by which solubility of \({\rm{AgBr(s)}}\left[ {{{\rm{K}}_{{\rm{SP}}}}{\rm{ = 1}}{{\rm{0}}^{{\rm{ - 10}}}}} \right]\) changes with respect to initial solubility, when it is dissolved in \({\text{0}}{\text{.01}}\,\,{\text{M}}\,\,{\text{NaBr}}\left( {{\text{aq}}} \right)\) solution. The value of \({\text{'x'}}\) is

1 2
2 3
3 4
4 5
CHXI07:EQUILIBRIUM

314949 Assertion :
The ionisation of hydrogen sulphide in water is low in the presence of \(\mathrm{HCl}\)
Reason :
\({{\text{H}}_2}{\text{S}}\) is a weak acid.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI07:EQUILIBRIUM

314950 Which pair will show common ion effect?

1 \(\mathrm{AgNO}_{3}+\mathrm{KNO}_{3}\)
2 \(\mathrm{NaCl}+\mathrm{HCl}\)
3 \(\mathrm{NH}_{4} \mathrm{OH}+\mathrm{NH}_{4} \mathrm{Cl}\)
4 \(\mathrm{BaCl}_{2}+\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}\)
CHXI07:EQUILIBRIUM

314951 In the analysis of III group basic radicals of salts, the purpose of adding \({\mathrm{\mathrm{NH}_{4} \mathrm{Cl}_{(\mathrm{s})}}}\) to \({\mathrm{\mathrm{NH}_{4} \mathrm{OH}}}\) is :

1 to increase the concentration of \({\mathrm{\mathrm{OH}^{-}}}\)ions.
2 to precipitate the radicals of group IV and V .
3 to suppress the dissociation of \({\mathrm{\mathrm{NH}_{4} \mathrm{OH}}}\).
4 to introduce \({\mathrm{\mathrm{Cl}^{-}}}\)ions.