316913 The chief impurity present in red bauxite is

316914 In the following sets of reactants which two sets best exhibit the amphoteric character of \(\mathrm{Al}_{2} \mathrm{O}_{3}, x \mathrm{H}_{2} \mathrm{O}\) ?
Set 1: \(\mathrm{Al}_{2} \mathrm{O}_{3} \cdot \mathrm{xH}_{2} \mathrm{O}(\mathrm{s})\) and \(\mathrm{OH}^{-}\)(aq)
Set 2: \({\rm{A}}{{\rm{l}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O(s)}}\,\,{\rm{and}}\,\,{{\rm{H}}_{\rm{2}}}{\rm{O(l)}}\)
Set 3:\({\text{A}}{{\text{l}}_{\text{2}}}{{\text{O}}_{\text{3}}}{\text{.X}}{{\text{H}}_{\text{2}}}{\text{O(s)}}\,\,{\text{and}}\,\,{{\text{H}}^{\text{ + }}}{\text{(aq)}}\)
Set 4: \(\mathrm{Al}_{2} \mathrm{O}_{3} \cdot \mathrm{XH}_{2} \mathrm{O}(\mathrm{s})\) and \(\mathrm{NH}_{3}\) (aq)

316915 Aluminium chloride in acidified aqueous solution forms an ion having geometry

316916 The metal which does not form a poly nuclear carbonyl is :

316913 The chief impurity present in red bauxite is

316914 In the following sets of reactants which two sets best exhibit the amphoteric character of \(\mathrm{Al}_{2} \mathrm{O}_{3}, x \mathrm{H}_{2} \mathrm{O}\) ?
Set 1: \(\mathrm{Al}_{2} \mathrm{O}_{3} \cdot \mathrm{xH}_{2} \mathrm{O}(\mathrm{s})\) and \(\mathrm{OH}^{-}\)(aq)
Set 2: \({\rm{A}}{{\rm{l}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O(s)}}\,\,{\rm{and}}\,\,{{\rm{H}}_{\rm{2}}}{\rm{O(l)}}\)
Set 3:\({\text{A}}{{\text{l}}_{\text{2}}}{{\text{O}}_{\text{3}}}{\text{.X}}{{\text{H}}_{\text{2}}}{\text{O(s)}}\,\,{\text{and}}\,\,{{\text{H}}^{\text{ + }}}{\text{(aq)}}\)
Set 4: \(\mathrm{Al}_{2} \mathrm{O}_{3} \cdot \mathrm{XH}_{2} \mathrm{O}(\mathrm{s})\) and \(\mathrm{NH}_{3}\) (aq)

316915 Aluminium chloride in acidified aqueous solution forms an ion having geometry

316916 The metal which does not form a poly nuclear carbonyl is :

316913 The chief impurity present in red bauxite is

316914 In the following sets of reactants which two sets best exhibit the amphoteric character of \(\mathrm{Al}_{2} \mathrm{O}_{3}, x \mathrm{H}_{2} \mathrm{O}\) ?
Set 1: \(\mathrm{Al}_{2} \mathrm{O}_{3} \cdot \mathrm{xH}_{2} \mathrm{O}(\mathrm{s})\) and \(\mathrm{OH}^{-}\)(aq)
Set 2: \({\rm{A}}{{\rm{l}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O(s)}}\,\,{\rm{and}}\,\,{{\rm{H}}_{\rm{2}}}{\rm{O(l)}}\)
Set 3:\({\text{A}}{{\text{l}}_{\text{2}}}{{\text{O}}_{\text{3}}}{\text{.X}}{{\text{H}}_{\text{2}}}{\text{O(s)}}\,\,{\text{and}}\,\,{{\text{H}}^{\text{ + }}}{\text{(aq)}}\)
Set 4: \(\mathrm{Al}_{2} \mathrm{O}_{3} \cdot \mathrm{XH}_{2} \mathrm{O}(\mathrm{s})\) and \(\mathrm{NH}_{3}\) (aq)

316915 Aluminium chloride in acidified aqueous solution forms an ion having geometry

316916 The metal which does not form a poly nuclear carbonyl is :

316913 The chief impurity present in red bauxite is

316914 In the following sets of reactants which two sets best exhibit the amphoteric character of \(\mathrm{Al}_{2} \mathrm{O}_{3}, x \mathrm{H}_{2} \mathrm{O}\) ?
Set 1: \(\mathrm{Al}_{2} \mathrm{O}_{3} \cdot \mathrm{xH}_{2} \mathrm{O}(\mathrm{s})\) and \(\mathrm{OH}^{-}\)(aq)
Set 2: \({\rm{A}}{{\rm{l}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O(s)}}\,\,{\rm{and}}\,\,{{\rm{H}}_{\rm{2}}}{\rm{O(l)}}\)
Set 3:\({\text{A}}{{\text{l}}_{\text{2}}}{{\text{O}}_{\text{3}}}{\text{.X}}{{\text{H}}_{\text{2}}}{\text{O(s)}}\,\,{\text{and}}\,\,{{\text{H}}^{\text{ + }}}{\text{(aq)}}\)
Set 4: \(\mathrm{Al}_{2} \mathrm{O}_{3} \cdot \mathrm{XH}_{2} \mathrm{O}(\mathrm{s})\) and \(\mathrm{NH}_{3}\) (aq)

316915 Aluminium chloride in acidified aqueous solution forms an ion having geometry

316916 The metal which does not form a poly nuclear carbonyl is :