ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2...
Transcript of ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2...
![Page 1: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/1.jpg)
© 2018 Slidefabric.com All rights reserved. P A G E 1
ELECTRO
CHEMISTRY
PART - 2
![Page 2: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/2.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
01
The electric charge for electrode deposition of one
gram equivalent of a substance is :
(1) one amp /sec
(2) 96,500 C / sec
(3) one amp / hour
(4) 96,500 C
![Page 3: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/3.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
02
The amount of an ion discharged during
electrolysis is not directly proportional to :
(1) resistance
(2) time
(3) current strength
(4) electrochemical equivalent of the element
![Page 4: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/4.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
03
Which one is the correct equation that represents
the first law of electrolysis ?
(m → mass, c → current, t → time)
(1) mz = ct (2) m = czt
(3) mc = zt (4) c = mzt
![Page 5: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/5.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
04
When one coulomb of electricity is passed through
an electrolytic solution the mass deposited on the
electrode is equal to :
(1) equivalent weight
(2) molecular weight
(3) electrochemical equivalent
(4) one gram
![Page 6: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/6.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
05
W g of copper deposited in a copper voltameter when an
electric current of 2 ampere is passed for 2 hours. If one
ampere of electric current is passed for 4 hours in the same
voltameter, copper doposited will be :
(1) W
(2) W/2
(3) W/4
(4) 2W
![Page 7: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/7.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
06
When the same electric current is passed through the
solution of different elecrolytes in series the amounts
of elements deposited on the electrodes are in the
ratio of their :
(1) atomic number (2) atomic masses
(3) specific gravities (4) equivalent masses
![Page 8: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/8.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
07
The ratio of weights of hydrogen and magnesium
deposited by the same amount of electricity from
aqueous H2SO4 and fused MgSO4 are :
(1) 1 : 8
(2) 1 : 12
(3) 1 : 16
(4) None of these
![Page 9: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/9.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
08
Faraday's law of electrolysis fails when :
(1) Temperature is increased
(2) Inert electrodes are used
(3) A mixture of electrolytes is used
(4) In none of the above cases
![Page 10: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/10.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
09
An ion is reduced to the element when it absorbs 6
× 1020 electrons. The number of equivalents of the
ion is:
(1) 0.10
(2) 0.01
(3) 0.001
(4) 0.0001
![Page 11: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/11.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
10
Electrolysis can be used to determine atomic
masses. A current of 0.550 A deposits 0.55 g of a
certain metal in 100 minutes. Calculate the atomic
mass of the metal if n = 3 :
(1) 100 (2) 45.0
(3) 48.25 (4) 144.75
![Page 12: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/12.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
11
How many minutes will it take to plate out 5.0 g of
Cr from a Cr2(SO4)3 solution using a current of
1.50 A ? (Atomic weight : Cr = 52.0)
(1) 254 (2) 30
(3) 152 (4) 103
![Page 13: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/13.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
12
An electrolysis of a oxytungsten complex ion using
1.10 A for 40 min produces 0.838 g of tungsten.
What is the charge of tungsten in the material ?
(Atomic weight : W = 184)
(1) 6 (2) 2
(3) 4 (4) 1
![Page 14: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/14.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
13
In an electrolytic cell of Ag/AgNO3/Ag, when
current is passed, the concentration of AgNO3
(1) Increases
(2) Decreases
(3) Remains same
(4) None of these
![Page 15: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/15.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
14
When a lead storage battery is discharged
(1) PbSO4 is formed
(2) Pb is formed
(3) SO2 is consumed
(4) H2SO4 is formed
![Page 16: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/16.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
15
During discharge of a lead storage cell the density
of sulphuric acid in the cell :
(1) Increasing
(2) decreasing
(3) remians unchanged
(4) initially increases but decrease subsequently
![Page 17: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/17.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
16
By the electrolysis of aqueous solution of CuSO4,
the products obtained at both the electrodes are
(1) O2 at anode and H2 at cathode
(2) H2 at anode and Cu at cathode
(3) O2 at anode and Cu at cathode
(4) H2S2O8 at anode and O2 at cathode
![Page 18: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/18.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
17
The moles of electrons required to deposit 1 gm
equivalent aluminium (at. wt. = 27) from a
solution of aluminium chloride will be
(1) 3
(2) 1
(3) 4
(4) 2
![Page 19: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/19.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
18
A spoon to be electroplated with gold should be :
(1) cathode
(2) anode
(3) electrolyte
(4) none of these
![Page 20: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/20.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
19
Which of the substances Na, Hg, S, Pt and graphite
can be used as electrodes in electrolytic cells having
aqueous solution ?
(1) Hg and Pt
(2) Hg, Pt and graphite
(3) Na, S
(4) Na, Hg, S
![Page 21: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/21.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
20
How many coulomb of electricity are consumed
when 100 mA current is passed through a solution
of AgNO3 for 30 minute during an electrolysis
experiment :
(1) 108 (2) 18000
(3) 180 (4) 3000
![Page 22: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/22.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
21
A current of 9.65 amp. flowing for 10 minute
deposits 3.0 g of a metal. The equivalent wt. of the
metal is :
(1) 10
(2) 30
(3) 50
(4) 96.5
![Page 23: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/23.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
22
During the electrolysis of fused NaCl, the reaction
that occurs at the anode is :
(1) Chloride ions are oxidized
(2) Chloride ions are reduced
(3) Sodium ions are oxidized
(4) Sodium ions are reduced
![Page 24: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/24.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
23
A fuel cell is :
(1) The voltaic cells in which continuous supply of fuels are send at anode
to give oxidation
(2) The votalic cell in which fuels such as : CH4, H2, CO are used up at
anode
(3) It involves the reactions of H2 – O2 fuel cell such as :
Anode : 2H2 + 4OH– 4H2O( ) + 4e
Cathode : O2 + 2H2O(l) + 4e 4OH–
(4) The efficiency of a H2 – O2 fule cell is 70 to 75%
(5) All of the above
⎯→⎯
⎯→⎯
![Page 25: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/25.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
24
108 g fairly concentrate solution of AgNO3 is
electrolyzed using 0.1 F of electricity. The weight
or resulting solution is :
(1) 94 g
(2) 11.6 g
(3) 96.4 g
(4) None
![Page 26: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/26.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
25
A certain current liberated 0.504 g of hydrogen in 2
hours. How many grams of copper can be liberated
by the same current flowing for the same time in
copper sulphate solution
(1) 31.8 g (2) 16.0 g
(3) 12.7 g (4) 63.5 g
![Page 27: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/27.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
26
An acidic solution of copper (II) sulphate containing some
contaminations of zinc and iron (II) ions was electrolysed till
all the copper is deposited. If electrolysis is further
continued for sometime, the product liberated at cathode is
(1) Fe
(2) Zn
(3) H2
(4) Alloy of Zn and Fe.
![Page 28: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/28.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
27
The ionization constant of a weak electrolyte is 25 ×
10–6 while the equivalent conductance of its 0.01 M
solution is 19.6 S cm2 eq–1. The equivalent
conductance of the electrolyte at infinite dilution (in
S cm2 eq–1 ) will be
(1) 250 (2) 196
(3) 392 (4) 384
![Page 29: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/29.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
28
The specific conductance of a N/10 KCl at 25°C is
0.0112 ohm–1 cm–1. The resistance of cell
containing solution at the same temperature was
found to be 55 ohms. The cell constant will be
(1) 6.16 cm–1 (2) 0.616 cm–1
(3) 0.0616 cm–1 (4) 616 cm–1
![Page 30: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/30.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
29
If the specific resistance of a solution of concentration
C g equivalent litre–1 is R, then its equivalent
conductance is :
(1) (2)
(3) (4)
C
R100
1000
RC
RC
1000
R1000
C
![Page 31: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/31.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
30
The specific conductance of a salt of 0.01 M
concentration is 1.061 × 10–4 molar conductance of
the same solution will be :
(1) 1.061 × 10–4
(2) 1.061
(3) 10.61
(4) 106.1
![Page 32: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/32.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
31
Which of the following solutions of NaCl will have
the highest specific condutance ?
(1) 0.001 N
(2) 0.1 N
(3) 0.01 N
(4) 1.0 N
![Page 33: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/33.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
32
The molar conductance at infinite dilution of AgNO3,
AgCl and NaCl are 116.5, 121.6 and 110.3 respectively.
The molar conductances of NaNO3 is :
(1) 111.4
(2) 105.2
(3) 130.6
(4) 150.2
![Page 34: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/34.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
33
Resistance of 0.1 M KCl solution in a conductance
cell is 300 ohm and conductivity is 0.013 Scm–1.
The value of cell constant is :
(1) 3.9 cm–1
(2) 39 m–1
(3) 3.9 m–1
(4) None of these
![Page 35: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/35.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
34
The specific conductivity of a saturated solution of AgCl is
3.40 × 10-6 ohm-1 cm-1 at 25 ºC. If lAg+ = 62.3 ohm-1 cm2
mol-1 & lCl = 67.7 ohm-1 cm2 mol-1, the solubility of AgCl
at 25 ºC is :
(1) 2.6 × 10-5 M
(2) 4.5 × 10-3 M
(3) 3.6 × 10-5 M
(4) 3.6 × 10-3 M
![Page 36: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/36.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
35
At infinite dilution, the eq. conductannces of
CH3COONa, HCl and CH3COOH are 91, 426 and
391 mho cm2 respectively at 25°C, The eq.
conductance of NaCl at infinite dilution will be :
(1) 126 (2) 209
(3) 391 (4) 908
![Page 37: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/37.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
36
The equivalent conductivity of 0.1 N CH3COOH
at 25°C is 80 and at infinite dilution 400. The
degree of dissociation of CH3COOH is :
(1) 1
(2) 0.2
(3) 0.1
(4) 0.5
![Page 38: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/38.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
37
The specific conductance of a 0.01 M solution of
KCl is 0.0014 ohm–1 cm–1 at 25°C, Its equivalent
conductance (cm2 ohm–1 equiv–1) is :
(1) 140
(2) 14
(3) 1.4
(4) 0.14
![Page 39: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/39.jpg)
www.gangwarinstitute.com Contact info : 8400-582-582, 8604-582-582
38
The value of for NH4Cl, NaOH and NaCl are 129.8,
248.1 and 126.4 ohm–1 cm2 mol–1 respectively.
Calculate for NH4OH solution (in ohm–1 cm2 mol–1)
(1) 215.5
(2) 251.5
(3) 244.7
(4) 351.5
![Page 40: ELECTRO CHEMISTRY · W g of copper deposited in a copper voltameter when an electric current of 2 ampere is passed for 2 hours. If one ampere of electric current is passed for 4 hours](https://reader036.fdocuments.us/reader036/viewer/2022063023/5ffceef57e4f1d0acc21e68a/html5/thumbnails/40.jpg)