Abnormal Molar Masses and Van't Hoff Factor
CHXII02:SOLUTIONS

318999 If the various terms in the given below expressions have usual meanings, the van’t Hoff factor (i) cannot be calculated by which one of the following expressions?

1 \({\rm{\pi V = }}\sqrt {\rm{i}} {\rm{nRT}}\)
2 \({\rm{\Delta }}{{\rm{T}}_{\rm{f}}}{\rm{ = i}}{{\rm{K}}_{\rm{f}}}{\rm{.m}}\)
3 \({\rm{\Delta }}{{\rm{T}}_{\rm{f}}}{\rm{ = i}}{{\rm{K}}_{\rm{f}}}{\rm{.m}}\)
4 \(\frac{{{\rm{P}}_{{\rm{solvent}}}^{\rm{o}}{\rm{ - }}{{\rm{P}}_{{\rm{solution}}}}}}{{{\rm{P}}_{{\rm{solvent}}}^{\rm{o}}}}{\rm{ = i}}\left( {\frac{{\rm{n}}}{{{\rm{N + n}}}}} \right)\)
CHXII02:SOLUTIONS

319000 Which of the following aqueous solutions has highest freezing point?

1 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{A}}{{\rm{l}}_{\rm{2}}}{\left( {{\rm{S}}{{\rm{O}}_{\rm{4}}}} \right)_{\rm{3}}}\)
2 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{BaC}}{{\rm{l}}_{\rm{2}}}\)
3 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{AlC}}{{\rm{l}}_{\rm{3}}}\)
4 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{Cl}}\)
CHXII02:SOLUTIONS

319001 The van’t Hoff factor 'I' accounts for

1 extent of dissolution of solute
2 extent of dissociation of solute
3 extent of mobility of solute
4 extent of solubility of solute
CHXII02:SOLUTIONS

319002 Which of the following aqueous solutions should have the highest boiling point ?

1 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{NaOH}}\)
2 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\)
3 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{2}}}{\rm{N}}{{\rm{O}}_{\rm{3}}}\)
4 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{KN}}{{\rm{O}}_{\rm{3}}}\)
CHXII02:SOLUTIONS

318999 If the various terms in the given below expressions have usual meanings, the van’t Hoff factor (i) cannot be calculated by which one of the following expressions?

1 \({\rm{\pi V = }}\sqrt {\rm{i}} {\rm{nRT}}\)
2 \({\rm{\Delta }}{{\rm{T}}_{\rm{f}}}{\rm{ = i}}{{\rm{K}}_{\rm{f}}}{\rm{.m}}\)
3 \({\rm{\Delta }}{{\rm{T}}_{\rm{f}}}{\rm{ = i}}{{\rm{K}}_{\rm{f}}}{\rm{.m}}\)
4 \(\frac{{{\rm{P}}_{{\rm{solvent}}}^{\rm{o}}{\rm{ - }}{{\rm{P}}_{{\rm{solution}}}}}}{{{\rm{P}}_{{\rm{solvent}}}^{\rm{o}}}}{\rm{ = i}}\left( {\frac{{\rm{n}}}{{{\rm{N + n}}}}} \right)\)
CHXII02:SOLUTIONS

319000 Which of the following aqueous solutions has highest freezing point?

1 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{A}}{{\rm{l}}_{\rm{2}}}{\left( {{\rm{S}}{{\rm{O}}_{\rm{4}}}} \right)_{\rm{3}}}\)
2 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{BaC}}{{\rm{l}}_{\rm{2}}}\)
3 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{AlC}}{{\rm{l}}_{\rm{3}}}\)
4 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{Cl}}\)
CHXII02:SOLUTIONS

319001 The van’t Hoff factor 'I' accounts for

1 extent of dissolution of solute
2 extent of dissociation of solute
3 extent of mobility of solute
4 extent of solubility of solute
CHXII02:SOLUTIONS

319002 Which of the following aqueous solutions should have the highest boiling point ?

1 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{NaOH}}\)
2 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\)
3 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{2}}}{\rm{N}}{{\rm{O}}_{\rm{3}}}\)
4 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{KN}}{{\rm{O}}_{\rm{3}}}\)
CHXII02:SOLUTIONS

318999 If the various terms in the given below expressions have usual meanings, the van’t Hoff factor (i) cannot be calculated by which one of the following expressions?

1 \({\rm{\pi V = }}\sqrt {\rm{i}} {\rm{nRT}}\)
2 \({\rm{\Delta }}{{\rm{T}}_{\rm{f}}}{\rm{ = i}}{{\rm{K}}_{\rm{f}}}{\rm{.m}}\)
3 \({\rm{\Delta }}{{\rm{T}}_{\rm{f}}}{\rm{ = i}}{{\rm{K}}_{\rm{f}}}{\rm{.m}}\)
4 \(\frac{{{\rm{P}}_{{\rm{solvent}}}^{\rm{o}}{\rm{ - }}{{\rm{P}}_{{\rm{solution}}}}}}{{{\rm{P}}_{{\rm{solvent}}}^{\rm{o}}}}{\rm{ = i}}\left( {\frac{{\rm{n}}}{{{\rm{N + n}}}}} \right)\)
CHXII02:SOLUTIONS

319000 Which of the following aqueous solutions has highest freezing point?

1 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{A}}{{\rm{l}}_{\rm{2}}}{\left( {{\rm{S}}{{\rm{O}}_{\rm{4}}}} \right)_{\rm{3}}}\)
2 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{BaC}}{{\rm{l}}_{\rm{2}}}\)
3 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{AlC}}{{\rm{l}}_{\rm{3}}}\)
4 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{Cl}}\)
CHXII02:SOLUTIONS

319001 The van’t Hoff factor 'I' accounts for

1 extent of dissolution of solute
2 extent of dissociation of solute
3 extent of mobility of solute
4 extent of solubility of solute
CHXII02:SOLUTIONS

319002 Which of the following aqueous solutions should have the highest boiling point ?

1 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{NaOH}}\)
2 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\)
3 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{2}}}{\rm{N}}{{\rm{O}}_{\rm{3}}}\)
4 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{KN}}{{\rm{O}}_{\rm{3}}}\)
CHXII02:SOLUTIONS

318999 If the various terms in the given below expressions have usual meanings, the van’t Hoff factor (i) cannot be calculated by which one of the following expressions?

1 \({\rm{\pi V = }}\sqrt {\rm{i}} {\rm{nRT}}\)
2 \({\rm{\Delta }}{{\rm{T}}_{\rm{f}}}{\rm{ = i}}{{\rm{K}}_{\rm{f}}}{\rm{.m}}\)
3 \({\rm{\Delta }}{{\rm{T}}_{\rm{f}}}{\rm{ = i}}{{\rm{K}}_{\rm{f}}}{\rm{.m}}\)
4 \(\frac{{{\rm{P}}_{{\rm{solvent}}}^{\rm{o}}{\rm{ - }}{{\rm{P}}_{{\rm{solution}}}}}}{{{\rm{P}}_{{\rm{solvent}}}^{\rm{o}}}}{\rm{ = i}}\left( {\frac{{\rm{n}}}{{{\rm{N + n}}}}} \right)\)
CHXII02:SOLUTIONS

319000 Which of the following aqueous solutions has highest freezing point?

1 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{A}}{{\rm{l}}_{\rm{2}}}{\left( {{\rm{S}}{{\rm{O}}_{\rm{4}}}} \right)_{\rm{3}}}\)
2 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{BaC}}{{\rm{l}}_{\rm{2}}}\)
3 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{AlC}}{{\rm{l}}_{\rm{3}}}\)
4 \({\rm{0}}{\rm{.1}}{\mkern 1mu} {\mkern 1mu} {\rm{molal}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{Cl}}\)
CHXII02:SOLUTIONS

319001 The van’t Hoff factor 'I' accounts for

1 extent of dissolution of solute
2 extent of dissociation of solute
3 extent of mobility of solute
4 extent of solubility of solute
CHXII02:SOLUTIONS

319002 Which of the following aqueous solutions should have the highest boiling point ?

1 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{NaOH}}\)
2 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\)
3 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{2}}}{\rm{N}}{{\rm{O}}_{\rm{3}}}\)
4 \({\rm{1}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{KN}}{{\rm{O}}_{\rm{3}}}\)