19853
Which one of the following metals could not be obtained on electrolysis of aqueous solution of its salts
1 \(Ag\)
2 \(Mg\)
3 \(Cu\)
4 \(Cr\)
Explanation:
(b )The reduction potential of \(Mg\) is less than that of water \(({E^o} = - 0.83\,V)\). Hence their ions in the aqueous solution cannot be reduced instead water will be reduced \(2{H_2}O + 2{e^ - } \to {H_2} + 2O{H^ - }\).
ELECTROCHEMISTRY
19854
Which of the following aqueous solution will conduct an electric current quite well
1 Glycerol
2 \(HCl\)
3 Sugar
4 Pure water
Explanation:
(b) \(HCl \) is an electrolyte.
ELECTROCHEMISTRY
19855
On the electrolysis of aqueous solution of sodium sulphate, on cathode we get
1 \(Na\)
2 \({H_2}\)
3 \(S{O_2}\)
4 \(S{O_3}\)
Explanation:
(b) Water is reduced at the cathode and oxidized at the anode instead of \(N{a^ + }\)and \(SO_4^{2 - }\). Cathode: \(2{H_2}O + 2{e^ - } \to {H_2} + 2O{H^ - }\) Anode : \({H_2}O \to 2{H^ + } + \frac{1}{2}{O_2} + 2{e^ - }\).
ELECTROCHEMISTRY
19856
Electrolysis involves oxidation and reduction respectively at
1 Anode and cathode
2 Cathode and anode
3 At both the electrodes
4 None of the above
Explanation:
(a)In electrolysis process oxidation occurs at anode and reduction occurs at cathode.
ELECTROCHEMISTRY
19857
Which of the following compounds will not undergo decomposition on passing electricity through aqueous solution
19853
Which one of the following metals could not be obtained on electrolysis of aqueous solution of its salts
1 \(Ag\)
2 \(Mg\)
3 \(Cu\)
4 \(Cr\)
Explanation:
(b )The reduction potential of \(Mg\) is less than that of water \(({E^o} = - 0.83\,V)\). Hence their ions in the aqueous solution cannot be reduced instead water will be reduced \(2{H_2}O + 2{e^ - } \to {H_2} + 2O{H^ - }\).
ELECTROCHEMISTRY
19854
Which of the following aqueous solution will conduct an electric current quite well
1 Glycerol
2 \(HCl\)
3 Sugar
4 Pure water
Explanation:
(b) \(HCl \) is an electrolyte.
ELECTROCHEMISTRY
19855
On the electrolysis of aqueous solution of sodium sulphate, on cathode we get
1 \(Na\)
2 \({H_2}\)
3 \(S{O_2}\)
4 \(S{O_3}\)
Explanation:
(b) Water is reduced at the cathode and oxidized at the anode instead of \(N{a^ + }\)and \(SO_4^{2 - }\). Cathode: \(2{H_2}O + 2{e^ - } \to {H_2} + 2O{H^ - }\) Anode : \({H_2}O \to 2{H^ + } + \frac{1}{2}{O_2} + 2{e^ - }\).
ELECTROCHEMISTRY
19856
Electrolysis involves oxidation and reduction respectively at
1 Anode and cathode
2 Cathode and anode
3 At both the electrodes
4 None of the above
Explanation:
(a)In electrolysis process oxidation occurs at anode and reduction occurs at cathode.
ELECTROCHEMISTRY
19857
Which of the following compounds will not undergo decomposition on passing electricity through aqueous solution
19853
Which one of the following metals could not be obtained on electrolysis of aqueous solution of its salts
1 \(Ag\)
2 \(Mg\)
3 \(Cu\)
4 \(Cr\)
Explanation:
(b )The reduction potential of \(Mg\) is less than that of water \(({E^o} = - 0.83\,V)\). Hence their ions in the aqueous solution cannot be reduced instead water will be reduced \(2{H_2}O + 2{e^ - } \to {H_2} + 2O{H^ - }\).
ELECTROCHEMISTRY
19854
Which of the following aqueous solution will conduct an electric current quite well
1 Glycerol
2 \(HCl\)
3 Sugar
4 Pure water
Explanation:
(b) \(HCl \) is an electrolyte.
ELECTROCHEMISTRY
19855
On the electrolysis of aqueous solution of sodium sulphate, on cathode we get
1 \(Na\)
2 \({H_2}\)
3 \(S{O_2}\)
4 \(S{O_3}\)
Explanation:
(b) Water is reduced at the cathode and oxidized at the anode instead of \(N{a^ + }\)and \(SO_4^{2 - }\). Cathode: \(2{H_2}O + 2{e^ - } \to {H_2} + 2O{H^ - }\) Anode : \({H_2}O \to 2{H^ + } + \frac{1}{2}{O_2} + 2{e^ - }\).
ELECTROCHEMISTRY
19856
Electrolysis involves oxidation and reduction respectively at
1 Anode and cathode
2 Cathode and anode
3 At both the electrodes
4 None of the above
Explanation:
(a)In electrolysis process oxidation occurs at anode and reduction occurs at cathode.
ELECTROCHEMISTRY
19857
Which of the following compounds will not undergo decomposition on passing electricity through aqueous solution
19853
Which one of the following metals could not be obtained on electrolysis of aqueous solution of its salts
1 \(Ag\)
2 \(Mg\)
3 \(Cu\)
4 \(Cr\)
Explanation:
(b )The reduction potential of \(Mg\) is less than that of water \(({E^o} = - 0.83\,V)\). Hence their ions in the aqueous solution cannot be reduced instead water will be reduced \(2{H_2}O + 2{e^ - } \to {H_2} + 2O{H^ - }\).
ELECTROCHEMISTRY
19854
Which of the following aqueous solution will conduct an electric current quite well
1 Glycerol
2 \(HCl\)
3 Sugar
4 Pure water
Explanation:
(b) \(HCl \) is an electrolyte.
ELECTROCHEMISTRY
19855
On the electrolysis of aqueous solution of sodium sulphate, on cathode we get
1 \(Na\)
2 \({H_2}\)
3 \(S{O_2}\)
4 \(S{O_3}\)
Explanation:
(b) Water is reduced at the cathode and oxidized at the anode instead of \(N{a^ + }\)and \(SO_4^{2 - }\). Cathode: \(2{H_2}O + 2{e^ - } \to {H_2} + 2O{H^ - }\) Anode : \({H_2}O \to 2{H^ + } + \frac{1}{2}{O_2} + 2{e^ - }\).
ELECTROCHEMISTRY
19856
Electrolysis involves oxidation and reduction respectively at
1 Anode and cathode
2 Cathode and anode
3 At both the electrodes
4 None of the above
Explanation:
(a)In electrolysis process oxidation occurs at anode and reduction occurs at cathode.
ELECTROCHEMISTRY
19857
Which of the following compounds will not undergo decomposition on passing electricity through aqueous solution
19853
Which one of the following metals could not be obtained on electrolysis of aqueous solution of its salts
1 \(Ag\)
2 \(Mg\)
3 \(Cu\)
4 \(Cr\)
Explanation:
(b )The reduction potential of \(Mg\) is less than that of water \(({E^o} = - 0.83\,V)\). Hence their ions in the aqueous solution cannot be reduced instead water will be reduced \(2{H_2}O + 2{e^ - } \to {H_2} + 2O{H^ - }\).
ELECTROCHEMISTRY
19854
Which of the following aqueous solution will conduct an electric current quite well
1 Glycerol
2 \(HCl\)
3 Sugar
4 Pure water
Explanation:
(b) \(HCl \) is an electrolyte.
ELECTROCHEMISTRY
19855
On the electrolysis of aqueous solution of sodium sulphate, on cathode we get
1 \(Na\)
2 \({H_2}\)
3 \(S{O_2}\)
4 \(S{O_3}\)
Explanation:
(b) Water is reduced at the cathode and oxidized at the anode instead of \(N{a^ + }\)and \(SO_4^{2 - }\). Cathode: \(2{H_2}O + 2{e^ - } \to {H_2} + 2O{H^ - }\) Anode : \({H_2}O \to 2{H^ + } + \frac{1}{2}{O_2} + 2{e^ - }\).
ELECTROCHEMISTRY
19856
Electrolysis involves oxidation and reduction respectively at
1 Anode and cathode
2 Cathode and anode
3 At both the electrodes
4 None of the above
Explanation:
(a)In electrolysis process oxidation occurs at anode and reduction occurs at cathode.
ELECTROCHEMISTRY
19857
Which of the following compounds will not undergo decomposition on passing electricity through aqueous solution
