Solubility Equilibria of Sparingly Soluble Salts
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CHXI07:EQUILIBRIUM

314898 Which of the following has the lowest value of \(\mathrm{K}_{\text {sp }}\) at \({\rm{25^\circ C}}\)?

1 \({\text{Mg (OH}}{{\text{)}}_{\text{2}}}\)
2 \({\text{Ca (OH}}{{\text{)}}_{\text{2}}}\)
3 \({\text{Ba (OH}}{{\text{)}}_{\text{2}}}\)
4 \({\text{Be (OH}}{{\text{)}}_{\text{2}}}\)
CHXI07:EQUILIBRIUM

314915 The solubility product of sparingly soluble salt \(\mathrm{AX}_{2}\) is \(3.2 \times 10^{-11}\). Its solubility (in \(\mathrm{mol} / \mathrm{L}\) ) is

1 \(5.6 \times 10^{-6}\)
2 \(3.1 \times 10^{-4}\)
3 \(2 \times 10^{-4}\)
4 \(4 \times 10^{-4}\)
AIIMS - 2018
CHXI07:EQUILIBRIUM

314899 The solubility product of a salt having formula \(\mathrm{M}_{2} \mathrm{X}_{3}\) is \(2.2 \times 10^{-20}\). If the solubility of another salt having formula \(\mathrm{M}_{2} \mathrm{X}\) is twice the molar solubility of \(\mathrm{M}_{2} \mathrm{X}_{3}\), the solubility product of \(\mathrm{M}_{2} \mathrm{X}\) is

1 \(3 \times 10^{-12}\)
2 \(9.16 \times 10^{-5}\)
3 \(4.58 \times 10^{-5}\)
4 \(2.76 \times 10^{-18}\)
AIIMS - 2009
CHXI07:EQUILIBRIUM

314900 Assertion :
On mixing \(500 \mathrm{~mL}\) of \({10^{ - 6}}{\text{M C}}{{\text{a}}^{2 + }}\) ion and \(500 \mathrm{~mL}\) of \({10^{ - 6}}{\text{ M }}{{\text{F}}^ - }\) ion, a precipitate of \(\mathrm{CaF}_{2}\) will be obtained. \(\left(\mathrm{K}_{\mathrm{sp}}\right.\) of \(\mathrm{CaF}_{2}=10^{-18}\) ).
Reason :
If \(\mathrm{K}_{\mathrm{sp}}\) is greater than ionic product, a precipitate will develop.

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.
AIIMS - 2007
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CHXI07:EQUILIBRIUM

314898 Which of the following has the lowest value of \(\mathrm{K}_{\text {sp }}\) at \({\rm{25^\circ C}}\)?

1 \({\text{Mg (OH}}{{\text{)}}_{\text{2}}}\)
2 \({\text{Ca (OH}}{{\text{)}}_{\text{2}}}\)
3 \({\text{Ba (OH}}{{\text{)}}_{\text{2}}}\)
4 \({\text{Be (OH}}{{\text{)}}_{\text{2}}}\)
CHXI07:EQUILIBRIUM

314915 The solubility product of sparingly soluble salt \(\mathrm{AX}_{2}\) is \(3.2 \times 10^{-11}\). Its solubility (in \(\mathrm{mol} / \mathrm{L}\) ) is

1 \(5.6 \times 10^{-6}\)
2 \(3.1 \times 10^{-4}\)
3 \(2 \times 10^{-4}\)
4 \(4 \times 10^{-4}\)
AIIMS - 2018
CHXI07:EQUILIBRIUM

314899 The solubility product of a salt having formula \(\mathrm{M}_{2} \mathrm{X}_{3}\) is \(2.2 \times 10^{-20}\). If the solubility of another salt having formula \(\mathrm{M}_{2} \mathrm{X}\) is twice the molar solubility of \(\mathrm{M}_{2} \mathrm{X}_{3}\), the solubility product of \(\mathrm{M}_{2} \mathrm{X}\) is

1 \(3 \times 10^{-12}\)
2 \(9.16 \times 10^{-5}\)
3 \(4.58 \times 10^{-5}\)
4 \(2.76 \times 10^{-18}\)
AIIMS - 2009
CHXI07:EQUILIBRIUM

314900 Assertion :
On mixing \(500 \mathrm{~mL}\) of \({10^{ - 6}}{\text{M C}}{{\text{a}}^{2 + }}\) ion and \(500 \mathrm{~mL}\) of \({10^{ - 6}}{\text{ M }}{{\text{F}}^ - }\) ion, a precipitate of \(\mathrm{CaF}_{2}\) will be obtained. \(\left(\mathrm{K}_{\mathrm{sp}}\right.\) of \(\mathrm{CaF}_{2}=10^{-18}\) ).
Reason :
If \(\mathrm{K}_{\mathrm{sp}}\) is greater than ionic product, a precipitate will develop.

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.
AIIMS - 2007
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CHXI07:EQUILIBRIUM

314898 Which of the following has the lowest value of \(\mathrm{K}_{\text {sp }}\) at \({\rm{25^\circ C}}\)?

1 \({\text{Mg (OH}}{{\text{)}}_{\text{2}}}\)
2 \({\text{Ca (OH}}{{\text{)}}_{\text{2}}}\)
3 \({\text{Ba (OH}}{{\text{)}}_{\text{2}}}\)
4 \({\text{Be (OH}}{{\text{)}}_{\text{2}}}\)
CHXI07:EQUILIBRIUM

314915 The solubility product of sparingly soluble salt \(\mathrm{AX}_{2}\) is \(3.2 \times 10^{-11}\). Its solubility (in \(\mathrm{mol} / \mathrm{L}\) ) is

1 \(5.6 \times 10^{-6}\)
2 \(3.1 \times 10^{-4}\)
3 \(2 \times 10^{-4}\)
4 \(4 \times 10^{-4}\)
AIIMS - 2018
CHXI07:EQUILIBRIUM

314899 The solubility product of a salt having formula \(\mathrm{M}_{2} \mathrm{X}_{3}\) is \(2.2 \times 10^{-20}\). If the solubility of another salt having formula \(\mathrm{M}_{2} \mathrm{X}\) is twice the molar solubility of \(\mathrm{M}_{2} \mathrm{X}_{3}\), the solubility product of \(\mathrm{M}_{2} \mathrm{X}\) is

1 \(3 \times 10^{-12}\)
2 \(9.16 \times 10^{-5}\)
3 \(4.58 \times 10^{-5}\)
4 \(2.76 \times 10^{-18}\)
AIIMS - 2009
CHXI07:EQUILIBRIUM

314900 Assertion :
On mixing \(500 \mathrm{~mL}\) of \({10^{ - 6}}{\text{M C}}{{\text{a}}^{2 + }}\) ion and \(500 \mathrm{~mL}\) of \({10^{ - 6}}{\text{ M }}{{\text{F}}^ - }\) ion, a precipitate of \(\mathrm{CaF}_{2}\) will be obtained. \(\left(\mathrm{K}_{\mathrm{sp}}\right.\) of \(\mathrm{CaF}_{2}=10^{-18}\) ).
Reason :
If \(\mathrm{K}_{\mathrm{sp}}\) is greater than ionic product, a precipitate will develop.

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.
AIIMS - 2007
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CHXI07:EQUILIBRIUM

314898 Which of the following has the lowest value of \(\mathrm{K}_{\text {sp }}\) at \({\rm{25^\circ C}}\)?

1 \({\text{Mg (OH}}{{\text{)}}_{\text{2}}}\)
2 \({\text{Ca (OH}}{{\text{)}}_{\text{2}}}\)
3 \({\text{Ba (OH}}{{\text{)}}_{\text{2}}}\)
4 \({\text{Be (OH}}{{\text{)}}_{\text{2}}}\)
CHXI07:EQUILIBRIUM

314915 The solubility product of sparingly soluble salt \(\mathrm{AX}_{2}\) is \(3.2 \times 10^{-11}\). Its solubility (in \(\mathrm{mol} / \mathrm{L}\) ) is

1 \(5.6 \times 10^{-6}\)
2 \(3.1 \times 10^{-4}\)
3 \(2 \times 10^{-4}\)
4 \(4 \times 10^{-4}\)
AIIMS - 2018
CHXI07:EQUILIBRIUM

314899 The solubility product of a salt having formula \(\mathrm{M}_{2} \mathrm{X}_{3}\) is \(2.2 \times 10^{-20}\). If the solubility of another salt having formula \(\mathrm{M}_{2} \mathrm{X}\) is twice the molar solubility of \(\mathrm{M}_{2} \mathrm{X}_{3}\), the solubility product of \(\mathrm{M}_{2} \mathrm{X}\) is

1 \(3 \times 10^{-12}\)
2 \(9.16 \times 10^{-5}\)
3 \(4.58 \times 10^{-5}\)
4 \(2.76 \times 10^{-18}\)
AIIMS - 2009
CHXI07:EQUILIBRIUM

314900 Assertion :
On mixing \(500 \mathrm{~mL}\) of \({10^{ - 6}}{\text{M C}}{{\text{a}}^{2 + }}\) ion and \(500 \mathrm{~mL}\) of \({10^{ - 6}}{\text{ M }}{{\text{F}}^ - }\) ion, a precipitate of \(\mathrm{CaF}_{2}\) will be obtained. \(\left(\mathrm{K}_{\mathrm{sp}}\right.\) of \(\mathrm{CaF}_{2}=10^{-18}\) ).
Reason :
If \(\mathrm{K}_{\mathrm{sp}}\) is greater than ionic product, a precipitate will develop.

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.
AIIMS - 2007
NEET DIGITAL LIBRARY