03. ELECTROCHEMISTRY
ELECTROCHEMISTRY

20057 The acid used in lead storage battery is

1 \({H_2}S{O_4}\)
2 \({H_3}P{O_4}\)
3 \(HCl\)
4 \(HN{O_3}\)
ELECTROCHEMISTRY

19825 Two electrolytic cells containing \(CuS{O_4}\) and \(AgN{O_3}\) respectively are connected in series and a current is passed through them until \(1 \,mg\) of copper is deposited in the first cell. The amount of silver deposited in the second cell during this time is approximately ......... \(\mathrm{mg}\) [Atomic weights of copper and silver are respectively \(63.57\) and \(107.88\)]

1 \(1.7\)
2 \(3.4 \)
3 \(5.1\)
4 \(6.8\)
ELECTROCHEMISTRY

19826 A current \(I\) is passed for a time \(t\) through a number of voltameters. If m is the mass of a substance deposited on an electrode and \(z\) is its electrochemical equivalent, then

1 \(\frac{{zIt}}{m} = {\rm{constant}}\)
2 \(\frac{z}{{mIt}} = {\rm{constant}}\)
3 \(\frac{I}{{zmt}} = {\rm{constant}}\)
4 \(\frac{{It}}{{zm}} = {\rm{constant}}\)
ELECTROCHEMISTRY

19827 For electroplating a spoon, it is placed in the voltameter at

1 The position of anode
2 The position of cathode
3 Exactly in the middle of anode and the cathode
4 Anywhere in the electrolyte
ELECTROCHEMISTRY

19828 If nearly \({10^5}\) coulomb liberate \(1\, gm\) equivalent of aluminium, then the amount of aluminium (equivalent weight \(9\)) deposited through electrolysis in \(20\) minutes by a current of \(50\, amp\) will be .............. \(\mathrm{gm}\)

1 \(0.6\)
2 \(0.09\)
3 \(5.4\)
4 \(10.8\)
ELECTROCHEMISTRY

20057 The acid used in lead storage battery is

1 \({H_2}S{O_4}\)
2 \({H_3}P{O_4}\)
3 \(HCl\)
4 \(HN{O_3}\)
ELECTROCHEMISTRY

19825 Two electrolytic cells containing \(CuS{O_4}\) and \(AgN{O_3}\) respectively are connected in series and a current is passed through them until \(1 \,mg\) of copper is deposited in the first cell. The amount of silver deposited in the second cell during this time is approximately ......... \(\mathrm{mg}\) [Atomic weights of copper and silver are respectively \(63.57\) and \(107.88\)]

1 \(1.7\)
2 \(3.4 \)
3 \(5.1\)
4 \(6.8\)
ELECTROCHEMISTRY

19826 A current \(I\) is passed for a time \(t\) through a number of voltameters. If m is the mass of a substance deposited on an electrode and \(z\) is its electrochemical equivalent, then

1 \(\frac{{zIt}}{m} = {\rm{constant}}\)
2 \(\frac{z}{{mIt}} = {\rm{constant}}\)
3 \(\frac{I}{{zmt}} = {\rm{constant}}\)
4 \(\frac{{It}}{{zm}} = {\rm{constant}}\)
ELECTROCHEMISTRY

19827 For electroplating a spoon, it is placed in the voltameter at

1 The position of anode
2 The position of cathode
3 Exactly in the middle of anode and the cathode
4 Anywhere in the electrolyte
ELECTROCHEMISTRY

19828 If nearly \({10^5}\) coulomb liberate \(1\, gm\) equivalent of aluminium, then the amount of aluminium (equivalent weight \(9\)) deposited through electrolysis in \(20\) minutes by a current of \(50\, amp\) will be .............. \(\mathrm{gm}\)

1 \(0.6\)
2 \(0.09\)
3 \(5.4\)
4 \(10.8\)
ELECTROCHEMISTRY

20057 The acid used in lead storage battery is

1 \({H_2}S{O_4}\)
2 \({H_3}P{O_4}\)
3 \(HCl\)
4 \(HN{O_3}\)
ELECTROCHEMISTRY

19825 Two electrolytic cells containing \(CuS{O_4}\) and \(AgN{O_3}\) respectively are connected in series and a current is passed through them until \(1 \,mg\) of copper is deposited in the first cell. The amount of silver deposited in the second cell during this time is approximately ......... \(\mathrm{mg}\) [Atomic weights of copper and silver are respectively \(63.57\) and \(107.88\)]

1 \(1.7\)
2 \(3.4 \)
3 \(5.1\)
4 \(6.8\)
ELECTROCHEMISTRY

19826 A current \(I\) is passed for a time \(t\) through a number of voltameters. If m is the mass of a substance deposited on an electrode and \(z\) is its electrochemical equivalent, then

1 \(\frac{{zIt}}{m} = {\rm{constant}}\)
2 \(\frac{z}{{mIt}} = {\rm{constant}}\)
3 \(\frac{I}{{zmt}} = {\rm{constant}}\)
4 \(\frac{{It}}{{zm}} = {\rm{constant}}\)
ELECTROCHEMISTRY

19827 For electroplating a spoon, it is placed in the voltameter at

1 The position of anode
2 The position of cathode
3 Exactly in the middle of anode and the cathode
4 Anywhere in the electrolyte
ELECTROCHEMISTRY

19828 If nearly \({10^5}\) coulomb liberate \(1\, gm\) equivalent of aluminium, then the amount of aluminium (equivalent weight \(9\)) deposited through electrolysis in \(20\) minutes by a current of \(50\, amp\) will be .............. \(\mathrm{gm}\)

1 \(0.6\)
2 \(0.09\)
3 \(5.4\)
4 \(10.8\)
ELECTROCHEMISTRY

20057 The acid used in lead storage battery is

1 \({H_2}S{O_4}\)
2 \({H_3}P{O_4}\)
3 \(HCl\)
4 \(HN{O_3}\)
ELECTROCHEMISTRY

19825 Two electrolytic cells containing \(CuS{O_4}\) and \(AgN{O_3}\) respectively are connected in series and a current is passed through them until \(1 \,mg\) of copper is deposited in the first cell. The amount of silver deposited in the second cell during this time is approximately ......... \(\mathrm{mg}\) [Atomic weights of copper and silver are respectively \(63.57\) and \(107.88\)]

1 \(1.7\)
2 \(3.4 \)
3 \(5.1\)
4 \(6.8\)
ELECTROCHEMISTRY

19826 A current \(I\) is passed for a time \(t\) through a number of voltameters. If m is the mass of a substance deposited on an electrode and \(z\) is its electrochemical equivalent, then

1 \(\frac{{zIt}}{m} = {\rm{constant}}\)
2 \(\frac{z}{{mIt}} = {\rm{constant}}\)
3 \(\frac{I}{{zmt}} = {\rm{constant}}\)
4 \(\frac{{It}}{{zm}} = {\rm{constant}}\)
ELECTROCHEMISTRY

19827 For electroplating a spoon, it is placed in the voltameter at

1 The position of anode
2 The position of cathode
3 Exactly in the middle of anode and the cathode
4 Anywhere in the electrolyte
ELECTROCHEMISTRY

19828 If nearly \({10^5}\) coulomb liberate \(1\, gm\) equivalent of aluminium, then the amount of aluminium (equivalent weight \(9\)) deposited through electrolysis in \(20\) minutes by a current of \(50\, amp\) will be .............. \(\mathrm{gm}\)

1 \(0.6\)
2 \(0.09\)
3 \(5.4\)
4 \(10.8\)
ELECTROCHEMISTRY

20057 The acid used in lead storage battery is

1 \({H_2}S{O_4}\)
2 \({H_3}P{O_4}\)
3 \(HCl\)
4 \(HN{O_3}\)
ELECTROCHEMISTRY

19825 Two electrolytic cells containing \(CuS{O_4}\) and \(AgN{O_3}\) respectively are connected in series and a current is passed through them until \(1 \,mg\) of copper is deposited in the first cell. The amount of silver deposited in the second cell during this time is approximately ......... \(\mathrm{mg}\) [Atomic weights of copper and silver are respectively \(63.57\) and \(107.88\)]

1 \(1.7\)
2 \(3.4 \)
3 \(5.1\)
4 \(6.8\)
ELECTROCHEMISTRY

19826 A current \(I\) is passed for a time \(t\) through a number of voltameters. If m is the mass of a substance deposited on an electrode and \(z\) is its electrochemical equivalent, then

1 \(\frac{{zIt}}{m} = {\rm{constant}}\)
2 \(\frac{z}{{mIt}} = {\rm{constant}}\)
3 \(\frac{I}{{zmt}} = {\rm{constant}}\)
4 \(\frac{{It}}{{zm}} = {\rm{constant}}\)
ELECTROCHEMISTRY

19827 For electroplating a spoon, it is placed in the voltameter at

1 The position of anode
2 The position of cathode
3 Exactly in the middle of anode and the cathode
4 Anywhere in the electrolyte
ELECTROCHEMISTRY

19828 If nearly \({10^5}\) coulomb liberate \(1\, gm\) equivalent of aluminium, then the amount of aluminium (equivalent weight \(9\)) deposited through electrolysis in \(20\) minutes by a current of \(50\, amp\) will be .............. \(\mathrm{gm}\)

1 \(0.6\)
2 \(0.09\)
3 \(5.4\)
4 \(10.8\)