03. ELECTROCHEMISTRY[KARNATAKA CET EXCLUSIVE]
CHEMISTRY(KCET)

285392 The pair of electrolytes that posses same value for the constant\((A)\) in the Debye -Huckel - Onsagar equation,

\(\lambda_m=\lambda_m^{\circ}-A \sqrt{C}\) is

1 \(\mathrm{NH}_4 \mathrm{Cl}, \mathrm{NaBr}\)
2 \(\mathrm{NaBr}, \mathrm{MgSO}_4\)
3 \(\mathrm{NaCl}, \mathrm{CaCl}_2\)
4 \(\mathrm{MgSO}_4, \mathrm{Na}_2 \mathrm{SO}_4\)
CHEMISTRY(KCET)

285393 Given :\(E_{\mathrm{Fe}^{+3} / \mathrm{Fe}^{+2}}^{\circ}=+0.76 \mathrm{~V}\) and \(E_{\mathrm{I}_2 / \mathrm{I}^{-}}^{\circ}=+0.55 \mathrm{~V}\).
The equilibrium constant for the reaction taking place in galvanic cell consisting of above two electrodes is \(\left[\frac{2.303 R T}{F}=0.06\right]\)

1 \(1 \times 10^9\)
2 \(3 \times 10^8\)
3 \(5 \times 10^{12}\)
4 \(1 \times 10^7\)
CHEMISTRY(KCET)

285394 If an aqueous solution of NaF is electrolyzed between inert electrodes, the product obtained at anode is

1 \(\mathrm{H}_2\)
2 Na
3 \(\mathrm{O}_2\)
4 \(\mathrm{F}_2\)
CHEMISTRY(KCET)

285395 One litre solution of\(\mathrm{MgCl}_2\) is electrolyzed completely by passing a current of 1 A for 16 min 5 sec . The original concentration of \(\mathrm{MgCl}_2\) solution was (Atomic mass of \(\mathrm{Mg}=24\) )

1 \(5 \times 10^{-3} \mathrm{M}\)
2 \(5 \times 10^{-2} \mathrm{M}\)
3 \(0.5 \times 10^{-3} \mathrm{M}\)
4 \(1.0 \times 10^{-2} \mathrm{M}\)
CHEMISTRY(KCET)

285392 The pair of electrolytes that posses same value for the constant\((A)\) in the Debye -Huckel - Onsagar equation,

\(\lambda_m=\lambda_m^{\circ}-A \sqrt{C}\) is

1 \(\mathrm{NH}_4 \mathrm{Cl}, \mathrm{NaBr}\)
2 \(\mathrm{NaBr}, \mathrm{MgSO}_4\)
3 \(\mathrm{NaCl}, \mathrm{CaCl}_2\)
4 \(\mathrm{MgSO}_4, \mathrm{Na}_2 \mathrm{SO}_4\)
CHEMISTRY(KCET)

285393 Given :\(E_{\mathrm{Fe}^{+3} / \mathrm{Fe}^{+2}}^{\circ}=+0.76 \mathrm{~V}\) and \(E_{\mathrm{I}_2 / \mathrm{I}^{-}}^{\circ}=+0.55 \mathrm{~V}\).
The equilibrium constant for the reaction taking place in galvanic cell consisting of above two electrodes is \(\left[\frac{2.303 R T}{F}=0.06\right]\)

1 \(1 \times 10^9\)
2 \(3 \times 10^8\)
3 \(5 \times 10^{12}\)
4 \(1 \times 10^7\)
CHEMISTRY(KCET)

285394 If an aqueous solution of NaF is electrolyzed between inert electrodes, the product obtained at anode is

1 \(\mathrm{H}_2\)
2 Na
3 \(\mathrm{O}_2\)
4 \(\mathrm{F}_2\)
CHEMISTRY(KCET)

285395 One litre solution of\(\mathrm{MgCl}_2\) is electrolyzed completely by passing a current of 1 A for 16 min 5 sec . The original concentration of \(\mathrm{MgCl}_2\) solution was (Atomic mass of \(\mathrm{Mg}=24\) )

1 \(5 \times 10^{-3} \mathrm{M}\)
2 \(5 \times 10^{-2} \mathrm{M}\)
3 \(0.5 \times 10^{-3} \mathrm{M}\)
4 \(1.0 \times 10^{-2} \mathrm{M}\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHEMISTRY(KCET)

285392 The pair of electrolytes that posses same value for the constant\((A)\) in the Debye -Huckel - Onsagar equation,

\(\lambda_m=\lambda_m^{\circ}-A \sqrt{C}\) is

1 \(\mathrm{NH}_4 \mathrm{Cl}, \mathrm{NaBr}\)
2 \(\mathrm{NaBr}, \mathrm{MgSO}_4\)
3 \(\mathrm{NaCl}, \mathrm{CaCl}_2\)
4 \(\mathrm{MgSO}_4, \mathrm{Na}_2 \mathrm{SO}_4\)
CHEMISTRY(KCET)

285393 Given :\(E_{\mathrm{Fe}^{+3} / \mathrm{Fe}^{+2}}^{\circ}=+0.76 \mathrm{~V}\) and \(E_{\mathrm{I}_2 / \mathrm{I}^{-}}^{\circ}=+0.55 \mathrm{~V}\).
The equilibrium constant for the reaction taking place in galvanic cell consisting of above two electrodes is \(\left[\frac{2.303 R T}{F}=0.06\right]\)

1 \(1 \times 10^9\)
2 \(3 \times 10^8\)
3 \(5 \times 10^{12}\)
4 \(1 \times 10^7\)
CHEMISTRY(KCET)

285394 If an aqueous solution of NaF is electrolyzed between inert electrodes, the product obtained at anode is

1 \(\mathrm{H}_2\)
2 Na
3 \(\mathrm{O}_2\)
4 \(\mathrm{F}_2\)
CHEMISTRY(KCET)

285395 One litre solution of\(\mathrm{MgCl}_2\) is electrolyzed completely by passing a current of 1 A for 16 min 5 sec . The original concentration of \(\mathrm{MgCl}_2\) solution was (Atomic mass of \(\mathrm{Mg}=24\) )

1 \(5 \times 10^{-3} \mathrm{M}\)
2 \(5 \times 10^{-2} \mathrm{M}\)
3 \(0.5 \times 10^{-3} \mathrm{M}\)
4 \(1.0 \times 10^{-2} \mathrm{M}\)
CHEMISTRY(KCET)

285392 The pair of electrolytes that posses same value for the constant\((A)\) in the Debye -Huckel - Onsagar equation,

\(\lambda_m=\lambda_m^{\circ}-A \sqrt{C}\) is

1 \(\mathrm{NH}_4 \mathrm{Cl}, \mathrm{NaBr}\)
2 \(\mathrm{NaBr}, \mathrm{MgSO}_4\)
3 \(\mathrm{NaCl}, \mathrm{CaCl}_2\)
4 \(\mathrm{MgSO}_4, \mathrm{Na}_2 \mathrm{SO}_4\)
CHEMISTRY(KCET)

285393 Given :\(E_{\mathrm{Fe}^{+3} / \mathrm{Fe}^{+2}}^{\circ}=+0.76 \mathrm{~V}\) and \(E_{\mathrm{I}_2 / \mathrm{I}^{-}}^{\circ}=+0.55 \mathrm{~V}\).
The equilibrium constant for the reaction taking place in galvanic cell consisting of above two electrodes is \(\left[\frac{2.303 R T}{F}=0.06\right]\)

1 \(1 \times 10^9\)
2 \(3 \times 10^8\)
3 \(5 \times 10^{12}\)
4 \(1 \times 10^7\)
CHEMISTRY(KCET)

285394 If an aqueous solution of NaF is electrolyzed between inert electrodes, the product obtained at anode is

1 \(\mathrm{H}_2\)
2 Na
3 \(\mathrm{O}_2\)
4 \(\mathrm{F}_2\)
CHEMISTRY(KCET)

285395 One litre solution of\(\mathrm{MgCl}_2\) is electrolyzed completely by passing a current of 1 A for 16 min 5 sec . The original concentration of \(\mathrm{MgCl}_2\) solution was (Atomic mass of \(\mathrm{Mg}=24\) )

1 \(5 \times 10^{-3} \mathrm{M}\)
2 \(5 \times 10^{-2} \mathrm{M}\)
3 \(0.5 \times 10^{-3} \mathrm{M}\)
4 \(1.0 \times 10^{-2} \mathrm{M}\)