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

319037 Which of the following aqueous solution will exhibit highest boiling point?

1 0.01 M urea
2 \({\rm{0}}{\rm{.01}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{KN}}{{\rm{O}}_{\rm{3}}}\)
3 \({\rm{0}}{\rm{.01}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\)
4 \({\rm{0}}{\rm{.015}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {{\rm{C}}_{\rm{6}}}{{\rm{H}}_{{\rm{12}}}}{{\rm{O}}_{\rm{6}}}\)
CHXII02:SOLUTIONS

319038 Lowering of vapour pressures of equimolar solutions of glucose, sodium chloride and barium nitrate are in the order.

1 Glucose \(>\mathrm{NaCl}>\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}\)
2 Glucose \(=\mathrm{NaCl}=\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}\)
3 \({\text{Ba}}{\left( {{\text{N}}{{\text{O}}_3}} \right)_2} > {\text{NaCl}} > {\text{Glucose}}\)
4 \(\mathrm{NaCl}>\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}>\) Glucose
CHXII02:SOLUTIONS

319039 Which of the following solutions will have the
highest boiling point?

1 0.5 molal \(\mathrm{BaCl}_{2}\)
2 1.0 molal \(\mathrm{KBr}\)
3 \(1.8 \times 10^{24}\) glucose molecules per litre.
4 \(100 \mathrm{~g}\) powdered glucose in one litre water
CHXII02:SOLUTIONS

319040 The values of observed and calculated molecular weights of silver nitrate are 92.64 and 170, respectively. The degree of dissociation of silver nitrate is

1 \(60\% \)
2 \(83.5\% \)
3 \(46.7\% \)
4 \(60.23\% \)
CHXII02:SOLUTIONS

319041 Equimolal solutions of
potassiumhexacyanoferrate (II), (represented as X) and potassium hexacyanoferrate (III), (represented as Y) are considered, which are at equal degree of dissociation. Which of the following statement is correct?

1 The boiling point of X is greater than Y.
2 X and Y have the same boiling point.
3 The boiling point of X is less than Y.
4 X and Y have the same freezing point.
CHXII02:SOLUTIONS

319037 Which of the following aqueous solution will exhibit highest boiling point?

1 0.01 M urea
2 \({\rm{0}}{\rm{.01}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{KN}}{{\rm{O}}_{\rm{3}}}\)
3 \({\rm{0}}{\rm{.01}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\)
4 \({\rm{0}}{\rm{.015}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {{\rm{C}}_{\rm{6}}}{{\rm{H}}_{{\rm{12}}}}{{\rm{O}}_{\rm{6}}}\)
CHXII02:SOLUTIONS

319038 Lowering of vapour pressures of equimolar solutions of glucose, sodium chloride and barium nitrate are in the order.

1 Glucose \(>\mathrm{NaCl}>\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}\)
2 Glucose \(=\mathrm{NaCl}=\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}\)
3 \({\text{Ba}}{\left( {{\text{N}}{{\text{O}}_3}} \right)_2} > {\text{NaCl}} > {\text{Glucose}}\)
4 \(\mathrm{NaCl}>\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}>\) Glucose
CHXII02:SOLUTIONS

319039 Which of the following solutions will have the
highest boiling point?

1 0.5 molal \(\mathrm{BaCl}_{2}\)
2 1.0 molal \(\mathrm{KBr}\)
3 \(1.8 \times 10^{24}\) glucose molecules per litre.
4 \(100 \mathrm{~g}\) powdered glucose in one litre water
CHXII02:SOLUTIONS

319040 The values of observed and calculated molecular weights of silver nitrate are 92.64 and 170, respectively. The degree of dissociation of silver nitrate is

1 \(60\% \)
2 \(83.5\% \)
3 \(46.7\% \)
4 \(60.23\% \)
CHXII02:SOLUTIONS

319041 Equimolal solutions of
potassiumhexacyanoferrate (II), (represented as X) and potassium hexacyanoferrate (III), (represented as Y) are considered, which are at equal degree of dissociation. Which of the following statement is correct?

1 The boiling point of X is greater than Y.
2 X and Y have the same boiling point.
3 The boiling point of X is less than Y.
4 X and Y have the same freezing point.
CHXII02:SOLUTIONS

319037 Which of the following aqueous solution will exhibit highest boiling point?

1 0.01 M urea
2 \({\rm{0}}{\rm{.01}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{KN}}{{\rm{O}}_{\rm{3}}}\)
3 \({\rm{0}}{\rm{.01}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\)
4 \({\rm{0}}{\rm{.015}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {{\rm{C}}_{\rm{6}}}{{\rm{H}}_{{\rm{12}}}}{{\rm{O}}_{\rm{6}}}\)
CHXII02:SOLUTIONS

319038 Lowering of vapour pressures of equimolar solutions of glucose, sodium chloride and barium nitrate are in the order.

1 Glucose \(>\mathrm{NaCl}>\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}\)
2 Glucose \(=\mathrm{NaCl}=\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}\)
3 \({\text{Ba}}{\left( {{\text{N}}{{\text{O}}_3}} \right)_2} > {\text{NaCl}} > {\text{Glucose}}\)
4 \(\mathrm{NaCl}>\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}>\) Glucose
CHXII02:SOLUTIONS

319039 Which of the following solutions will have the
highest boiling point?

1 0.5 molal \(\mathrm{BaCl}_{2}\)
2 1.0 molal \(\mathrm{KBr}\)
3 \(1.8 \times 10^{24}\) glucose molecules per litre.
4 \(100 \mathrm{~g}\) powdered glucose in one litre water
CHXII02:SOLUTIONS

319040 The values of observed and calculated molecular weights of silver nitrate are 92.64 and 170, respectively. The degree of dissociation of silver nitrate is

1 \(60\% \)
2 \(83.5\% \)
3 \(46.7\% \)
4 \(60.23\% \)
CHXII02:SOLUTIONS

319041 Equimolal solutions of
potassiumhexacyanoferrate (II), (represented as X) and potassium hexacyanoferrate (III), (represented as Y) are considered, which are at equal degree of dissociation. Which of the following statement is correct?

1 The boiling point of X is greater than Y.
2 X and Y have the same boiling point.
3 The boiling point of X is less than Y.
4 X and Y have the same freezing point.
CHXII02:SOLUTIONS

319037 Which of the following aqueous solution will exhibit highest boiling point?

1 0.01 M urea
2 \({\rm{0}}{\rm{.01}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{KN}}{{\rm{O}}_{\rm{3}}}\)
3 \({\rm{0}}{\rm{.01}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\)
4 \({\rm{0}}{\rm{.015}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {{\rm{C}}_{\rm{6}}}{{\rm{H}}_{{\rm{12}}}}{{\rm{O}}_{\rm{6}}}\)
CHXII02:SOLUTIONS

319038 Lowering of vapour pressures of equimolar solutions of glucose, sodium chloride and barium nitrate are in the order.

1 Glucose \(>\mathrm{NaCl}>\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}\)
2 Glucose \(=\mathrm{NaCl}=\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}\)
3 \({\text{Ba}}{\left( {{\text{N}}{{\text{O}}_3}} \right)_2} > {\text{NaCl}} > {\text{Glucose}}\)
4 \(\mathrm{NaCl}>\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}>\) Glucose
CHXII02:SOLUTIONS

319039 Which of the following solutions will have the
highest boiling point?

1 0.5 molal \(\mathrm{BaCl}_{2}\)
2 1.0 molal \(\mathrm{KBr}\)
3 \(1.8 \times 10^{24}\) glucose molecules per litre.
4 \(100 \mathrm{~g}\) powdered glucose in one litre water
CHXII02:SOLUTIONS

319040 The values of observed and calculated molecular weights of silver nitrate are 92.64 and 170, respectively. The degree of dissociation of silver nitrate is

1 \(60\% \)
2 \(83.5\% \)
3 \(46.7\% \)
4 \(60.23\% \)
CHXII02:SOLUTIONS

319041 Equimolal solutions of
potassiumhexacyanoferrate (II), (represented as X) and potassium hexacyanoferrate (III), (represented as Y) are considered, which are at equal degree of dissociation. Which of the following statement is correct?

1 The boiling point of X is greater than Y.
2 X and Y have the same boiling point.
3 The boiling point of X is less than Y.
4 X and Y have the same freezing point.
CHXII02:SOLUTIONS

319037 Which of the following aqueous solution will exhibit highest boiling point?

1 0.01 M urea
2 \({\rm{0}}{\rm{.01}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{KN}}{{\rm{O}}_{\rm{3}}}\)
3 \({\rm{0}}{\rm{.01}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\)
4 \({\rm{0}}{\rm{.015}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}{\mkern 1mu} {\mkern 1mu} {{\rm{C}}_{\rm{6}}}{{\rm{H}}_{{\rm{12}}}}{{\rm{O}}_{\rm{6}}}\)
CHXII02:SOLUTIONS

319038 Lowering of vapour pressures of equimolar solutions of glucose, sodium chloride and barium nitrate are in the order.

1 Glucose \(>\mathrm{NaCl}>\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}\)
2 Glucose \(=\mathrm{NaCl}=\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}\)
3 \({\text{Ba}}{\left( {{\text{N}}{{\text{O}}_3}} \right)_2} > {\text{NaCl}} > {\text{Glucose}}\)
4 \(\mathrm{NaCl}>\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}>\) Glucose
CHXII02:SOLUTIONS

319039 Which of the following solutions will have the
highest boiling point?

1 0.5 molal \(\mathrm{BaCl}_{2}\)
2 1.0 molal \(\mathrm{KBr}\)
3 \(1.8 \times 10^{24}\) glucose molecules per litre.
4 \(100 \mathrm{~g}\) powdered glucose in one litre water
CHXII02:SOLUTIONS

319040 The values of observed and calculated molecular weights of silver nitrate are 92.64 and 170, respectively. The degree of dissociation of silver nitrate is

1 \(60\% \)
2 \(83.5\% \)
3 \(46.7\% \)
4 \(60.23\% \)
CHXII02:SOLUTIONS

319041 Equimolal solutions of
potassiumhexacyanoferrate (II), (represented as X) and potassium hexacyanoferrate (III), (represented as Y) are considered, which are at equal degree of dissociation. Which of the following statement is correct?

1 The boiling point of X is greater than Y.
2 X and Y have the same boiling point.
3 The boiling point of X is less than Y.
4 X and Y have the same freezing point.