5 RBTS PAPER(CHEMISTRY)
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5 RBTS PAPER

164050 The figure shows the change in concentrations of species A and \(B\) as a function of time. The equilibrium constant \(\mathrm{Kc}\) for the reaction
\(\mathrm{A}(\mathrm{g}) \rightleftharpoons 2 \mathrm{~B}(\mathrm{~g})\) is :

1 \(\mathrm{K}_{\mathrm{C}}>1\)
2 \(\mathrm{K}<1\)
3 \(K=1\)
4 Data insufficient
NCERT-XI-178
5 RBTS PAPER

164051 The degree of dissociation of \(\mathrm{PCl}_5\) obeying the equilibrium \(\mathrm{PCl}_5 \rightleftharpoons \mathrm{PCl}_3+\mathrm{Cl}_2\) is related to the pressure at equilibrium by : (If \(\propto<1\) )

1 \(\alpha \propto P\)
2 \(\alpha \propto \frac{1}{\sqrt{\mathrm{P}}}\)
3 \(\alpha \propto \frac{1}{\mathrm{P}^2}\)
4 \(\alpha \propto \frac{1}{\mathrm{P}^4}\)
NCERT-XI-178
5 RBTS PAPER

164052 Which of the following not behave as buffer :

1 \(\mathrm{CH}_3 \mathrm{COOH}+\mathrm{CH}_3 \mathrm{COONa}\)
2 \(\mathrm{NH}_4 \mathrm{OH}+\left(\mathrm{NH}_4\right)_2 \mathrm{SO}_4\)
3 Mixture of \(1 \mathrm{M} 20 \mathrm{ml} \mathrm{NaOH}\) and \(1 \mathrm{M}, 40 \mathrm{ml} \mathrm{HCN}\)
4 All behave as buffer
NCERT-XI-202
5 RBTS PAPER

164053 Boric acid is an acid because its molecule :

1 accepts \(\mathrm{OH}^{-}\)from water releasing proton
2 combines with proton from water molecule
3 contains replaceable \(\mathrm{H}^{+}\)ion
4 gives up a proton
NCERT-XI-192
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5 RBTS PAPER

164050 The figure shows the change in concentrations of species A and \(B\) as a function of time. The equilibrium constant \(\mathrm{Kc}\) for the reaction
\(\mathrm{A}(\mathrm{g}) \rightleftharpoons 2 \mathrm{~B}(\mathrm{~g})\) is :

1 \(\mathrm{K}_{\mathrm{C}}>1\)
2 \(\mathrm{K}<1\)
3 \(K=1\)
4 Data insufficient
NCERT-XI-178
5 RBTS PAPER

164051 The degree of dissociation of \(\mathrm{PCl}_5\) obeying the equilibrium \(\mathrm{PCl}_5 \rightleftharpoons \mathrm{PCl}_3+\mathrm{Cl}_2\) is related to the pressure at equilibrium by : (If \(\propto<1\) )

1 \(\alpha \propto P\)
2 \(\alpha \propto \frac{1}{\sqrt{\mathrm{P}}}\)
3 \(\alpha \propto \frac{1}{\mathrm{P}^2}\)
4 \(\alpha \propto \frac{1}{\mathrm{P}^4}\)
NCERT-XI-178
5 RBTS PAPER

164052 Which of the following not behave as buffer :

1 \(\mathrm{CH}_3 \mathrm{COOH}+\mathrm{CH}_3 \mathrm{COONa}\)
2 \(\mathrm{NH}_4 \mathrm{OH}+\left(\mathrm{NH}_4\right)_2 \mathrm{SO}_4\)
3 Mixture of \(1 \mathrm{M} 20 \mathrm{ml} \mathrm{NaOH}\) and \(1 \mathrm{M}, 40 \mathrm{ml} \mathrm{HCN}\)
4 All behave as buffer
NCERT-XI-202
5 RBTS PAPER

164053 Boric acid is an acid because its molecule :

1 accepts \(\mathrm{OH}^{-}\)from water releasing proton
2 combines with proton from water molecule
3 contains replaceable \(\mathrm{H}^{+}\)ion
4 gives up a proton
NCERT-XI-192
NEET DIGITAL LIBRARY
5 RBTS PAPER

164050 The figure shows the change in concentrations of species A and \(B\) as a function of time. The equilibrium constant \(\mathrm{Kc}\) for the reaction
\(\mathrm{A}(\mathrm{g}) \rightleftharpoons 2 \mathrm{~B}(\mathrm{~g})\) is :

1 \(\mathrm{K}_{\mathrm{C}}>1\)
2 \(\mathrm{K}<1\)
3 \(K=1\)
4 Data insufficient
NCERT-XI-178
5 RBTS PAPER

164051 The degree of dissociation of \(\mathrm{PCl}_5\) obeying the equilibrium \(\mathrm{PCl}_5 \rightleftharpoons \mathrm{PCl}_3+\mathrm{Cl}_2\) is related to the pressure at equilibrium by : (If \(\propto<1\) )

1 \(\alpha \propto P\)
2 \(\alpha \propto \frac{1}{\sqrt{\mathrm{P}}}\)
3 \(\alpha \propto \frac{1}{\mathrm{P}^2}\)
4 \(\alpha \propto \frac{1}{\mathrm{P}^4}\)
NCERT-XI-178
5 RBTS PAPER

164052 Which of the following not behave as buffer :

1 \(\mathrm{CH}_3 \mathrm{COOH}+\mathrm{CH}_3 \mathrm{COONa}\)
2 \(\mathrm{NH}_4 \mathrm{OH}+\left(\mathrm{NH}_4\right)_2 \mathrm{SO}_4\)
3 Mixture of \(1 \mathrm{M} 20 \mathrm{ml} \mathrm{NaOH}\) and \(1 \mathrm{M}, 40 \mathrm{ml} \mathrm{HCN}\)
4 All behave as buffer
NCERT-XI-202
5 RBTS PAPER

164053 Boric acid is an acid because its molecule :

1 accepts \(\mathrm{OH}^{-}\)from water releasing proton
2 combines with proton from water molecule
3 contains replaceable \(\mathrm{H}^{+}\)ion
4 gives up a proton
NCERT-XI-192
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5 RBTS PAPER

164050 The figure shows the change in concentrations of species A and \(B\) as a function of time. The equilibrium constant \(\mathrm{Kc}\) for the reaction
\(\mathrm{A}(\mathrm{g}) \rightleftharpoons 2 \mathrm{~B}(\mathrm{~g})\) is :

1 \(\mathrm{K}_{\mathrm{C}}>1\)
2 \(\mathrm{K}<1\)
3 \(K=1\)
4 Data insufficient
NCERT-XI-178
5 RBTS PAPER

164051 The degree of dissociation of \(\mathrm{PCl}_5\) obeying the equilibrium \(\mathrm{PCl}_5 \rightleftharpoons \mathrm{PCl}_3+\mathrm{Cl}_2\) is related to the pressure at equilibrium by : (If \(\propto<1\) )

1 \(\alpha \propto P\)
2 \(\alpha \propto \frac{1}{\sqrt{\mathrm{P}}}\)
3 \(\alpha \propto \frac{1}{\mathrm{P}^2}\)
4 \(\alpha \propto \frac{1}{\mathrm{P}^4}\)
NCERT-XI-178
5 RBTS PAPER

164052 Which of the following not behave as buffer :

1 \(\mathrm{CH}_3 \mathrm{COOH}+\mathrm{CH}_3 \mathrm{COONa}\)
2 \(\mathrm{NH}_4 \mathrm{OH}+\left(\mathrm{NH}_4\right)_2 \mathrm{SO}_4\)
3 Mixture of \(1 \mathrm{M} 20 \mathrm{ml} \mathrm{NaOH}\) and \(1 \mathrm{M}, 40 \mathrm{ml} \mathrm{HCN}\)
4 All behave as buffer
NCERT-XI-202
5 RBTS PAPER

164053 Boric acid is an acid because its molecule :

1 accepts \(\mathrm{OH}^{-}\)from water releasing proton
2 combines with proton from water molecule
3 contains replaceable \(\mathrm{H}^{+}\)ion
4 gives up a proton
NCERT-XI-192
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