8 RBTS PAPER(CHEMISTRY)
8 RBTS PAPER

164427 The correct order of acidic strength is :

1 \(\mathrm{SO}_2<\mathrm{P}_2 \mathrm{O}_3<\mathrm{SiO}_2<\mathrm{Al}_2 \mathrm{O}_3\)
2 \(\mathrm{SiO}_2<\mathrm{SO}_2<\mathrm{Al}_2 \mathrm{O}_3<\mathrm{P}_2 \mathrm{O}_3\)
3 \(\mathrm{Al}_2 \mathrm{O}_3<\mathrm{SiO}_2<\mathrm{SO}_2<\mathrm{P}_2 \mathrm{O}_3\)
4 \(\mathrm{Al}_2 \mathrm{O}_3<\mathrm{SiO}_2<\mathrm{P}_2 \mathrm{O}_3<\mathrm{SO}_2\)
8 RBTS PAPER

164417 The covalent and vanderwaal's radii of \(\mathbf{H}\) atom respectively are :

1 \(0.37 \AA, 0.8 \AA\)
2 \(0.8 \AA, 0.37 \AA\)
3 \(0.8 \AA, 0.8 \AA\)
4 \(0.37 \AA, 0.37 \AA\)
8 RBTS PAPER

164424 Find the formula of halide of metal whose successive ionisation energies are \(x, 2 x\) and \(50 x\) \(\mathrm{kJ} / \mathrm{mol}\) respectively :

1 \(\mathrm{MX}_2\)
2 \(\mathrm{MX}_4\)
3 \(\mathrm{M}_2 \mathrm{X}\)
4 \(M X_3\)
8 RBTS PAPER

164418 Choose the endothermic process :

1 \(\mathrm{F}(\mathrm{g})+\mathrm{e}^{-} \rightarrow \mathrm{F}^{-}(\mathrm{g})\)
2 \(\mathrm{Cl}(\mathrm{g}) \rightarrow \mathrm{Cl}^{+}(\mathrm{g})+\mathrm{e}^{-}\)
3 \(\mathrm{O}^{-}(\mathrm{g})+\mathrm{e}^{-} \rightarrow \mathrm{O}^{2-}(\mathrm{g})\)
4 Both 2 and 3
8 RBTS PAPER

164427 The correct order of acidic strength is :

1 \(\mathrm{SO}_2<\mathrm{P}_2 \mathrm{O}_3<\mathrm{SiO}_2<\mathrm{Al}_2 \mathrm{O}_3\)
2 \(\mathrm{SiO}_2<\mathrm{SO}_2<\mathrm{Al}_2 \mathrm{O}_3<\mathrm{P}_2 \mathrm{O}_3\)
3 \(\mathrm{Al}_2 \mathrm{O}_3<\mathrm{SiO}_2<\mathrm{SO}_2<\mathrm{P}_2 \mathrm{O}_3\)
4 \(\mathrm{Al}_2 \mathrm{O}_3<\mathrm{SiO}_2<\mathrm{P}_2 \mathrm{O}_3<\mathrm{SO}_2\)
8 RBTS PAPER

164417 The covalent and vanderwaal's radii of \(\mathbf{H}\) atom respectively are :

1 \(0.37 \AA, 0.8 \AA\)
2 \(0.8 \AA, 0.37 \AA\)
3 \(0.8 \AA, 0.8 \AA\)
4 \(0.37 \AA, 0.37 \AA\)
8 RBTS PAPER

164424 Find the formula of halide of metal whose successive ionisation energies are \(x, 2 x\) and \(50 x\) \(\mathrm{kJ} / \mathrm{mol}\) respectively :

1 \(\mathrm{MX}_2\)
2 \(\mathrm{MX}_4\)
3 \(\mathrm{M}_2 \mathrm{X}\)
4 \(M X_3\)
8 RBTS PAPER

164418 Choose the endothermic process :

1 \(\mathrm{F}(\mathrm{g})+\mathrm{e}^{-} \rightarrow \mathrm{F}^{-}(\mathrm{g})\)
2 \(\mathrm{Cl}(\mathrm{g}) \rightarrow \mathrm{Cl}^{+}(\mathrm{g})+\mathrm{e}^{-}\)
3 \(\mathrm{O}^{-}(\mathrm{g})+\mathrm{e}^{-} \rightarrow \mathrm{O}^{2-}(\mathrm{g})\)
4 Both 2 and 3
8 RBTS PAPER

164427 The correct order of acidic strength is :

1 \(\mathrm{SO}_2<\mathrm{P}_2 \mathrm{O}_3<\mathrm{SiO}_2<\mathrm{Al}_2 \mathrm{O}_3\)
2 \(\mathrm{SiO}_2<\mathrm{SO}_2<\mathrm{Al}_2 \mathrm{O}_3<\mathrm{P}_2 \mathrm{O}_3\)
3 \(\mathrm{Al}_2 \mathrm{O}_3<\mathrm{SiO}_2<\mathrm{SO}_2<\mathrm{P}_2 \mathrm{O}_3\)
4 \(\mathrm{Al}_2 \mathrm{O}_3<\mathrm{SiO}_2<\mathrm{P}_2 \mathrm{O}_3<\mathrm{SO}_2\)
8 RBTS PAPER

164417 The covalent and vanderwaal's radii of \(\mathbf{H}\) atom respectively are :

1 \(0.37 \AA, 0.8 \AA\)
2 \(0.8 \AA, 0.37 \AA\)
3 \(0.8 \AA, 0.8 \AA\)
4 \(0.37 \AA, 0.37 \AA\)
8 RBTS PAPER

164424 Find the formula of halide of metal whose successive ionisation energies are \(x, 2 x\) and \(50 x\) \(\mathrm{kJ} / \mathrm{mol}\) respectively :

1 \(\mathrm{MX}_2\)
2 \(\mathrm{MX}_4\)
3 \(\mathrm{M}_2 \mathrm{X}\)
4 \(M X_3\)
8 RBTS PAPER

164418 Choose the endothermic process :

1 \(\mathrm{F}(\mathrm{g})+\mathrm{e}^{-} \rightarrow \mathrm{F}^{-}(\mathrm{g})\)
2 \(\mathrm{Cl}(\mathrm{g}) \rightarrow \mathrm{Cl}^{+}(\mathrm{g})+\mathrm{e}^{-}\)
3 \(\mathrm{O}^{-}(\mathrm{g})+\mathrm{e}^{-} \rightarrow \mathrm{O}^{2-}(\mathrm{g})\)
4 Both 2 and 3
8 RBTS PAPER

164427 The correct order of acidic strength is :

1 \(\mathrm{SO}_2<\mathrm{P}_2 \mathrm{O}_3<\mathrm{SiO}_2<\mathrm{Al}_2 \mathrm{O}_3\)
2 \(\mathrm{SiO}_2<\mathrm{SO}_2<\mathrm{Al}_2 \mathrm{O}_3<\mathrm{P}_2 \mathrm{O}_3\)
3 \(\mathrm{Al}_2 \mathrm{O}_3<\mathrm{SiO}_2<\mathrm{SO}_2<\mathrm{P}_2 \mathrm{O}_3\)
4 \(\mathrm{Al}_2 \mathrm{O}_3<\mathrm{SiO}_2<\mathrm{P}_2 \mathrm{O}_3<\mathrm{SO}_2\)
8 RBTS PAPER

164417 The covalent and vanderwaal's radii of \(\mathbf{H}\) atom respectively are :

1 \(0.37 \AA, 0.8 \AA\)
2 \(0.8 \AA, 0.37 \AA\)
3 \(0.8 \AA, 0.8 \AA\)
4 \(0.37 \AA, 0.37 \AA\)
8 RBTS PAPER

164424 Find the formula of halide of metal whose successive ionisation energies are \(x, 2 x\) and \(50 x\) \(\mathrm{kJ} / \mathrm{mol}\) respectively :

1 \(\mathrm{MX}_2\)
2 \(\mathrm{MX}_4\)
3 \(\mathrm{M}_2 \mathrm{X}\)
4 \(M X_3\)
8 RBTS PAPER

164418 Choose the endothermic process :

1 \(\mathrm{F}(\mathrm{g})+\mathrm{e}^{-} \rightarrow \mathrm{F}^{-}(\mathrm{g})\)
2 \(\mathrm{Cl}(\mathrm{g}) \rightarrow \mathrm{Cl}^{+}(\mathrm{g})+\mathrm{e}^{-}\)
3 \(\mathrm{O}^{-}(\mathrm{g})+\mathrm{e}^{-} \rightarrow \mathrm{O}^{2-}(\mathrm{g})\)
4 Both 2 and 3