318982 1.4275 g sample of \(\left[ {{\rm{Cr}}{{\left( {{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right)}_{\rm{6}}}} \right]{\rm{S}}{{\rm{O}}_{\rm{4}}}{\rm{Cl}}{\mkern 1mu} {\mkern 1mu} \left( {{\rm{mol}}{\rm{.wt = 285}}{\rm{.5}}} \right)\) is dissolved to prepare 250 mL solution showing an osmotic pressure of 1.478 atm at \({\rm{2}}{{\rm{7}}^{\rm{^\circ }}}{\rm{C}}\). Which of the following statements are correct about this solution ?
(I) Each molecule furnishes three ions in solution.
(II) The van’t Hoff factor is 3.
(III) Equilibrium molarity of \(\left[ {{\rm{Cr}}{{\left( {{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right)}_{\rm{6}}}} \right]{\rm{S}}{{\rm{O}}_{\rm{4}}}{\rm{Cl = 0}}\)
(IV) Equilibrium molarity of \({\left[ {{\rm{Cr}}{{\left( {{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right)}_{\rm{6}}}} \right]^{{\rm{3 + }}}}{\rm{ = 0}}{\rm{.02}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}\)

318983 Compound \({\rm{PdC}}{{\rm{l}}_{\rm{4}}} \cdot {\rm{6}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\) is a hydrate complex; 1 molal aqueous solution of it has freezing point of 269.28 K. Assuming 100% ionisation of complex, the molecular formula of the complex is
\(\left( {{{\rm{K}}_{\rm{f}}}{\mkern 1mu} {\mkern 1mu} {\rm{for}}{\mkern 1mu} {\mkern 1mu} {\rm{water = 1}}{\rm{.86K}}{\rm{.kg/mol}}} \right)\)

318984 The boiling point of a solution containing 0.61 g of benzoic acid in the 50 g of carbon disulphide assuming \({\rm{84\% }}\) dimerisation of the acid, is (The boiling point and \({{\rm{K}}_{\rm{b}}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{S}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{are}}{\mkern 1mu} {\mkern 1mu} {\rm{46}}{\rm{.}}{{\rm{2}}^{\rm{^\circ }}}{\rm{C}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{46}}{\rm{.}}{{\rm{2}}^{\rm{^\circ }}}{\rm{C}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{2}}{\rm{.3}}{\mkern 1mu} {\mkern 1mu} {\rm{K}}{\mkern 1mu} {\mkern 1mu} {\rm{kg}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\) respectively)

318985 The freezing point of benzene decrease by \({\rm{0}}{\rm{.4}}{{\rm{5}}^{\rm{^\circ }}}{\rm{C}}\) when 0.2 g of acetic acid is added to 20 g of benzene. If acetic acid associates to form a dimer in benzene will be :- (\({{\rm{K}}_{\rm{f}}}\) for benzene \({\rm{ = 5}}{\rm{.12K}}{\mkern 1mu} {\mkern 1mu} {\rm{kg}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\))

318982 1.4275 g sample of \(\left[ {{\rm{Cr}}{{\left( {{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right)}_{\rm{6}}}} \right]{\rm{S}}{{\rm{O}}_{\rm{4}}}{\rm{Cl}}{\mkern 1mu} {\mkern 1mu} \left( {{\rm{mol}}{\rm{.wt = 285}}{\rm{.5}}} \right)\) is dissolved to prepare 250 mL solution showing an osmotic pressure of 1.478 atm at \({\rm{2}}{{\rm{7}}^{\rm{^\circ }}}{\rm{C}}\). Which of the following statements are correct about this solution ?
(I) Each molecule furnishes three ions in solution.
(II) The van’t Hoff factor is 3.
(III) Equilibrium molarity of \(\left[ {{\rm{Cr}}{{\left( {{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right)}_{\rm{6}}}} \right]{\rm{S}}{{\rm{O}}_{\rm{4}}}{\rm{Cl = 0}}\)
(IV) Equilibrium molarity of \({\left[ {{\rm{Cr}}{{\left( {{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right)}_{\rm{6}}}} \right]^{{\rm{3 + }}}}{\rm{ = 0}}{\rm{.02}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}\)

318983 Compound \({\rm{PdC}}{{\rm{l}}_{\rm{4}}} \cdot {\rm{6}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\) is a hydrate complex; 1 molal aqueous solution of it has freezing point of 269.28 K. Assuming 100% ionisation of complex, the molecular formula of the complex is
\(\left( {{{\rm{K}}_{\rm{f}}}{\mkern 1mu} {\mkern 1mu} {\rm{for}}{\mkern 1mu} {\mkern 1mu} {\rm{water = 1}}{\rm{.86K}}{\rm{.kg/mol}}} \right)\)

318984 The boiling point of a solution containing 0.61 g of benzoic acid in the 50 g of carbon disulphide assuming \({\rm{84\% }}\) dimerisation of the acid, is (The boiling point and \({{\rm{K}}_{\rm{b}}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{S}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{are}}{\mkern 1mu} {\mkern 1mu} {\rm{46}}{\rm{.}}{{\rm{2}}^{\rm{^\circ }}}{\rm{C}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{46}}{\rm{.}}{{\rm{2}}^{\rm{^\circ }}}{\rm{C}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{2}}{\rm{.3}}{\mkern 1mu} {\mkern 1mu} {\rm{K}}{\mkern 1mu} {\mkern 1mu} {\rm{kg}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\) respectively)

318985 The freezing point of benzene decrease by \({\rm{0}}{\rm{.4}}{{\rm{5}}^{\rm{^\circ }}}{\rm{C}}\) when 0.2 g of acetic acid is added to 20 g of benzene. If acetic acid associates to form a dimer in benzene will be :- (\({{\rm{K}}_{\rm{f}}}\) for benzene \({\rm{ = 5}}{\rm{.12K}}{\mkern 1mu} {\mkern 1mu} {\rm{kg}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\))

318982 1.4275 g sample of \(\left[ {{\rm{Cr}}{{\left( {{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right)}_{\rm{6}}}} \right]{\rm{S}}{{\rm{O}}_{\rm{4}}}{\rm{Cl}}{\mkern 1mu} {\mkern 1mu} \left( {{\rm{mol}}{\rm{.wt = 285}}{\rm{.5}}} \right)\) is dissolved to prepare 250 mL solution showing an osmotic pressure of 1.478 atm at \({\rm{2}}{{\rm{7}}^{\rm{^\circ }}}{\rm{C}}\). Which of the following statements are correct about this solution ?
(I) Each molecule furnishes three ions in solution.
(II) The van’t Hoff factor is 3.
(III) Equilibrium molarity of \(\left[ {{\rm{Cr}}{{\left( {{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right)}_{\rm{6}}}} \right]{\rm{S}}{{\rm{O}}_{\rm{4}}}{\rm{Cl = 0}}\)
(IV) Equilibrium molarity of \({\left[ {{\rm{Cr}}{{\left( {{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right)}_{\rm{6}}}} \right]^{{\rm{3 + }}}}{\rm{ = 0}}{\rm{.02}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}\)

318983 Compound \({\rm{PdC}}{{\rm{l}}_{\rm{4}}} \cdot {\rm{6}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\) is a hydrate complex; 1 molal aqueous solution of it has freezing point of 269.28 K. Assuming 100% ionisation of complex, the molecular formula of the complex is
\(\left( {{{\rm{K}}_{\rm{f}}}{\mkern 1mu} {\mkern 1mu} {\rm{for}}{\mkern 1mu} {\mkern 1mu} {\rm{water = 1}}{\rm{.86K}}{\rm{.kg/mol}}} \right)\)

318984 The boiling point of a solution containing 0.61 g of benzoic acid in the 50 g of carbon disulphide assuming \({\rm{84\% }}\) dimerisation of the acid, is (The boiling point and \({{\rm{K}}_{\rm{b}}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{S}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{are}}{\mkern 1mu} {\mkern 1mu} {\rm{46}}{\rm{.}}{{\rm{2}}^{\rm{^\circ }}}{\rm{C}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{46}}{\rm{.}}{{\rm{2}}^{\rm{^\circ }}}{\rm{C}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{2}}{\rm{.3}}{\mkern 1mu} {\mkern 1mu} {\rm{K}}{\mkern 1mu} {\mkern 1mu} {\rm{kg}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\) respectively)

318985 The freezing point of benzene decrease by \({\rm{0}}{\rm{.4}}{{\rm{5}}^{\rm{^\circ }}}{\rm{C}}\) when 0.2 g of acetic acid is added to 20 g of benzene. If acetic acid associates to form a dimer in benzene will be :- (\({{\rm{K}}_{\rm{f}}}\) for benzene \({\rm{ = 5}}{\rm{.12K}}{\mkern 1mu} {\mkern 1mu} {\rm{kg}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\))

318982 1.4275 g sample of \(\left[ {{\rm{Cr}}{{\left( {{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right)}_{\rm{6}}}} \right]{\rm{S}}{{\rm{O}}_{\rm{4}}}{\rm{Cl}}{\mkern 1mu} {\mkern 1mu} \left( {{\rm{mol}}{\rm{.wt = 285}}{\rm{.5}}} \right)\) is dissolved to prepare 250 mL solution showing an osmotic pressure of 1.478 atm at \({\rm{2}}{{\rm{7}}^{\rm{^\circ }}}{\rm{C}}\). Which of the following statements are correct about this solution ?
(I) Each molecule furnishes three ions in solution.
(II) The van’t Hoff factor is 3.
(III) Equilibrium molarity of \(\left[ {{\rm{Cr}}{{\left( {{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right)}_{\rm{6}}}} \right]{\rm{S}}{{\rm{O}}_{\rm{4}}}{\rm{Cl = 0}}\)
(IV) Equilibrium molarity of \({\left[ {{\rm{Cr}}{{\left( {{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right)}_{\rm{6}}}} \right]^{{\rm{3 + }}}}{\rm{ = 0}}{\rm{.02}}{\mkern 1mu} {\mkern 1mu} {\rm{M}}\)

318983 Compound \({\rm{PdC}}{{\rm{l}}_{\rm{4}}} \cdot {\rm{6}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\) is a hydrate complex; 1 molal aqueous solution of it has freezing point of 269.28 K. Assuming 100% ionisation of complex, the molecular formula of the complex is
\(\left( {{{\rm{K}}_{\rm{f}}}{\mkern 1mu} {\mkern 1mu} {\rm{for}}{\mkern 1mu} {\mkern 1mu} {\rm{water = 1}}{\rm{.86K}}{\rm{.kg/mol}}} \right)\)

318984 The boiling point of a solution containing 0.61 g of benzoic acid in the 50 g of carbon disulphide assuming \({\rm{84\% }}\) dimerisation of the acid, is (The boiling point and \({{\rm{K}}_{\rm{b}}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{S}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{are}}{\mkern 1mu} {\mkern 1mu} {\rm{46}}{\rm{.}}{{\rm{2}}^{\rm{^\circ }}}{\rm{C}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{46}}{\rm{.}}{{\rm{2}}^{\rm{^\circ }}}{\rm{C}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{2}}{\rm{.3}}{\mkern 1mu} {\mkern 1mu} {\rm{K}}{\mkern 1mu} {\mkern 1mu} {\rm{kg}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\) respectively)

318985 The freezing point of benzene decrease by \({\rm{0}}{\rm{.4}}{{\rm{5}}^{\rm{^\circ }}}{\rm{C}}\) when 0.2 g of acetic acid is added to 20 g of benzene. If acetic acid associates to form a dimer in benzene will be :- (\({{\rm{K}}_{\rm{f}}}\) for benzene \({\rm{ = 5}}{\rm{.12K}}{\mkern 1mu} {\mkern 1mu} {\rm{kg}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\))