Properties of Colloids
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CHXII05:SURFACE CHEMISTRY

320879 The coagulation of \(200 \mathrm{~mL}\) of a positive colloid took place when \({\rm{0}}{\rm{.73\;g}}\,\,{\rm{HCl}}\) was added to it without changing the volume much. The flocculation value of \(\mathrm{HCl}\) for the colloid is

1 0.365
2 36.5
3 100
4 150
CHXII05:SURFACE CHEMISTRY

320880 Statement A :
Coagulation power of \(\mathrm{Na}_{3} \mathrm{PO}_{4}\) is more than \(\mathrm{NaCl}\).
Statement B :
Greater the valency of the flocculating ion added, greater is the power of coagulation.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII05:SURFACE CHEMISTRY

320881 Which one of the following method is commonly used for destruction of colloid?

1 Dialysis
2 Condensation
3 Filtration by animal membrane
4 By adding electrolyte
CHXII05:SURFACE CHEMISTRY

320882 Given below are two statements:
Statement I:
In the coagulation of a negative sol, the flocculating power of the three given ions is in the order \(-\mathrm{Al}^{3+}>\mathrm{Ba}^{2+}>\mathrm{Na}^{+}\)
Statement II:
In the coagulation of a positive sol, the flocculating power of the three given salts is in the order \(-\mathrm{NaCl}>\mathrm{Na}_{2} \mathrm{SO}_{4}>\mathrm{Na}_{3} \mathrm{PO}_{4}\)
In the light of the above statements, choose the most appropriate answer from the options given below:

1 Both statement I and statement II are incorrect.
2 Statement I is correct but statement II is incorrect
3 Statement I is incorrect but statement II is correct
4 Both statement I and statements II are correct.
NEET - 2022
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CHXII05:SURFACE CHEMISTRY

320879 The coagulation of \(200 \mathrm{~mL}\) of a positive colloid took place when \({\rm{0}}{\rm{.73\;g}}\,\,{\rm{HCl}}\) was added to it without changing the volume much. The flocculation value of \(\mathrm{HCl}\) for the colloid is

1 0.365
2 36.5
3 100
4 150
CHXII05:SURFACE CHEMISTRY

320880 Statement A :
Coagulation power of \(\mathrm{Na}_{3} \mathrm{PO}_{4}\) is more than \(\mathrm{NaCl}\).
Statement B :
Greater the valency of the flocculating ion added, greater is the power of coagulation.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII05:SURFACE CHEMISTRY

320881 Which one of the following method is commonly used for destruction of colloid?

1 Dialysis
2 Condensation
3 Filtration by animal membrane
4 By adding electrolyte
CHXII05:SURFACE CHEMISTRY

320882 Given below are two statements:
Statement I:
In the coagulation of a negative sol, the flocculating power of the three given ions is in the order \(-\mathrm{Al}^{3+}>\mathrm{Ba}^{2+}>\mathrm{Na}^{+}\)
Statement II:
In the coagulation of a positive sol, the flocculating power of the three given salts is in the order \(-\mathrm{NaCl}>\mathrm{Na}_{2} \mathrm{SO}_{4}>\mathrm{Na}_{3} \mathrm{PO}_{4}\)
In the light of the above statements, choose the most appropriate answer from the options given below:

1 Both statement I and statement II are incorrect.
2 Statement I is correct but statement II is incorrect
3 Statement I is incorrect but statement II is correct
4 Both statement I and statements II are correct.
NEET - 2022
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CHXII05:SURFACE CHEMISTRY

320879 The coagulation of \(200 \mathrm{~mL}\) of a positive colloid took place when \({\rm{0}}{\rm{.73\;g}}\,\,{\rm{HCl}}\) was added to it without changing the volume much. The flocculation value of \(\mathrm{HCl}\) for the colloid is

1 0.365
2 36.5
3 100
4 150
CHXII05:SURFACE CHEMISTRY

320880 Statement A :
Coagulation power of \(\mathrm{Na}_{3} \mathrm{PO}_{4}\) is more than \(\mathrm{NaCl}\).
Statement B :
Greater the valency of the flocculating ion added, greater is the power of coagulation.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII05:SURFACE CHEMISTRY

320881 Which one of the following method is commonly used for destruction of colloid?

1 Dialysis
2 Condensation
3 Filtration by animal membrane
4 By adding electrolyte
CHXII05:SURFACE CHEMISTRY

320882 Given below are two statements:
Statement I:
In the coagulation of a negative sol, the flocculating power of the three given ions is in the order \(-\mathrm{Al}^{3+}>\mathrm{Ba}^{2+}>\mathrm{Na}^{+}\)
Statement II:
In the coagulation of a positive sol, the flocculating power of the three given salts is in the order \(-\mathrm{NaCl}>\mathrm{Na}_{2} \mathrm{SO}_{4}>\mathrm{Na}_{3} \mathrm{PO}_{4}\)
In the light of the above statements, choose the most appropriate answer from the options given below:

1 Both statement I and statement II are incorrect.
2 Statement I is correct but statement II is incorrect
3 Statement I is incorrect but statement II is correct
4 Both statement I and statements II are correct.
NEET - 2022
NEET DIGITAL LIBRARY
CHXII05:SURFACE CHEMISTRY

320879 The coagulation of \(200 \mathrm{~mL}\) of a positive colloid took place when \({\rm{0}}{\rm{.73\;g}}\,\,{\rm{HCl}}\) was added to it without changing the volume much. The flocculation value of \(\mathrm{HCl}\) for the colloid is

1 0.365
2 36.5
3 100
4 150
CHXII05:SURFACE CHEMISTRY

320880 Statement A :
Coagulation power of \(\mathrm{Na}_{3} \mathrm{PO}_{4}\) is more than \(\mathrm{NaCl}\).
Statement B :
Greater the valency of the flocculating ion added, greater is the power of coagulation.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII05:SURFACE CHEMISTRY

320881 Which one of the following method is commonly used for destruction of colloid?

1 Dialysis
2 Condensation
3 Filtration by animal membrane
4 By adding electrolyte
CHXII05:SURFACE CHEMISTRY

320882 Given below are two statements:
Statement I:
In the coagulation of a negative sol, the flocculating power of the three given ions is in the order \(-\mathrm{Al}^{3+}>\mathrm{Ba}^{2+}>\mathrm{Na}^{+}\)
Statement II:
In the coagulation of a positive sol, the flocculating power of the three given salts is in the order \(-\mathrm{NaCl}>\mathrm{Na}_{2} \mathrm{SO}_{4}>\mathrm{Na}_{3} \mathrm{PO}_{4}\)
In the light of the above statements, choose the most appropriate answer from the options given below:

1 Both statement I and statement II are incorrect.
2 Statement I is correct but statement II is incorrect
3 Statement I is incorrect but statement II is correct
4 Both statement I and statements II are correct.
NEET - 2022
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