01. Faraday's Law
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ELECTROCHEMISTRY

276018 The volume of $\mathrm{H}_{2}$ obtained at S.T.P when Mg obtained by passing a current of $0.5 \mathrm{amp}$ through molten $\mathbf{M g C l}_{2}$ for 32.2 minutes is treated with excess dilute $\mathrm{HCl}$ is approximately [Eq. mass of Mg = 12]

1 $56 \mathrm{~cm}^{3}$
2 $28 \mathrm{~cm}^{3}$
3 $5.6 \mathrm{~cm}^{3}$
4 $112 \mathrm{~cm}^{3}$
COMEDK-2012
ELECTROCHEMISTRY

276023 A metal plate of dimension of $\left(1 \times 2 \mathrm{~cm}^{2}\right)$ has to be coated on both the sides by $\mathrm{Cu}$ metal. How long does it take to deposit $\mathrm{Cu}$ of $0.01 \mathrm{~cm}$ thickness, if $1.5 \mathrm{~A}$ current is used?
[Electrochemical equivalence of $\mathrm{Cu}$ is $\mathbf{0 . 0 0 0 3}$ $\mathrm{g} / \mathrm{c}$ and the density of $\mathrm{Cu}$ is $9 \mathrm{~g} / \mathrm{cm}^{3}$ ]

1 $400 \mathrm{~s}$
2 $800 \mathrm{~s}$
3 $120 \mathrm{~s}$
4 $160 \mathrm{~s}$
TS-EAMCET (Engg.)
ELECTROCHEMISTRY

276025 A current of 0.5 amperes is passed for 30 minute through a voltmeter containing $\mathrm{CuSO}_{4}$ solution. Find the Weight of $\mathrm{Cu}$ deposited.

1 $3.18 \mathrm{~g}$
2 $0.318 \mathrm{~g}$
3 $0.296 \mathrm{~g}$
4 $0.150 \mathrm{~g}$
AMU-2010
ELECTROCHEMISTRY

276026 When one Faraday of electricity is passed through $\mathrm{CuSO}_{4}$ solution, number of atoms formed at cathode will be

1 $6.02 \times 10^{23}$
2 $3.01 \times 10^{23}$
3 2
4 $6.02 \times 10^{-23}$
Assam CEE-2018
For More Updates join with Us
ELECTROCHEMISTRY

276018 The volume of $\mathrm{H}_{2}$ obtained at S.T.P when Mg obtained by passing a current of $0.5 \mathrm{amp}$ through molten $\mathbf{M g C l}_{2}$ for 32.2 minutes is treated with excess dilute $\mathrm{HCl}$ is approximately [Eq. mass of Mg = 12]

1 $56 \mathrm{~cm}^{3}$
2 $28 \mathrm{~cm}^{3}$
3 $5.6 \mathrm{~cm}^{3}$
4 $112 \mathrm{~cm}^{3}$
COMEDK-2012
ELECTROCHEMISTRY

276023 A metal plate of dimension of $\left(1 \times 2 \mathrm{~cm}^{2}\right)$ has to be coated on both the sides by $\mathrm{Cu}$ metal. How long does it take to deposit $\mathrm{Cu}$ of $0.01 \mathrm{~cm}$ thickness, if $1.5 \mathrm{~A}$ current is used?
[Electrochemical equivalence of $\mathrm{Cu}$ is $\mathbf{0 . 0 0 0 3}$ $\mathrm{g} / \mathrm{c}$ and the density of $\mathrm{Cu}$ is $9 \mathrm{~g} / \mathrm{cm}^{3}$ ]

1 $400 \mathrm{~s}$
2 $800 \mathrm{~s}$
3 $120 \mathrm{~s}$
4 $160 \mathrm{~s}$
TS-EAMCET (Engg.)
ELECTROCHEMISTRY

276025 A current of 0.5 amperes is passed for 30 minute through a voltmeter containing $\mathrm{CuSO}_{4}$ solution. Find the Weight of $\mathrm{Cu}$ deposited.

1 $3.18 \mathrm{~g}$
2 $0.318 \mathrm{~g}$
3 $0.296 \mathrm{~g}$
4 $0.150 \mathrm{~g}$
AMU-2010
ELECTROCHEMISTRY

276026 When one Faraday of electricity is passed through $\mathrm{CuSO}_{4}$ solution, number of atoms formed at cathode will be

1 $6.02 \times 10^{23}$
2 $3.01 \times 10^{23}$
3 2
4 $6.02 \times 10^{-23}$
Assam CEE-2018
NEET DIGITAL LIBRARY
ELECTROCHEMISTRY

276018 The volume of $\mathrm{H}_{2}$ obtained at S.T.P when Mg obtained by passing a current of $0.5 \mathrm{amp}$ through molten $\mathbf{M g C l}_{2}$ for 32.2 minutes is treated with excess dilute $\mathrm{HCl}$ is approximately [Eq. mass of Mg = 12]

1 $56 \mathrm{~cm}^{3}$
2 $28 \mathrm{~cm}^{3}$
3 $5.6 \mathrm{~cm}^{3}$
4 $112 \mathrm{~cm}^{3}$
COMEDK-2012
ELECTROCHEMISTRY

276023 A metal plate of dimension of $\left(1 \times 2 \mathrm{~cm}^{2}\right)$ has to be coated on both the sides by $\mathrm{Cu}$ metal. How long does it take to deposit $\mathrm{Cu}$ of $0.01 \mathrm{~cm}$ thickness, if $1.5 \mathrm{~A}$ current is used?
[Electrochemical equivalence of $\mathrm{Cu}$ is $\mathbf{0 . 0 0 0 3}$ $\mathrm{g} / \mathrm{c}$ and the density of $\mathrm{Cu}$ is $9 \mathrm{~g} / \mathrm{cm}^{3}$ ]

1 $400 \mathrm{~s}$
2 $800 \mathrm{~s}$
3 $120 \mathrm{~s}$
4 $160 \mathrm{~s}$
TS-EAMCET (Engg.)
ELECTROCHEMISTRY

276025 A current of 0.5 amperes is passed for 30 minute through a voltmeter containing $\mathrm{CuSO}_{4}$ solution. Find the Weight of $\mathrm{Cu}$ deposited.

1 $3.18 \mathrm{~g}$
2 $0.318 \mathrm{~g}$
3 $0.296 \mathrm{~g}$
4 $0.150 \mathrm{~g}$
AMU-2010
ELECTROCHEMISTRY

276026 When one Faraday of electricity is passed through $\mathrm{CuSO}_{4}$ solution, number of atoms formed at cathode will be

1 $6.02 \times 10^{23}$
2 $3.01 \times 10^{23}$
3 2
4 $6.02 \times 10^{-23}$
Assam CEE-2018
Join With Us for More Updates
ELECTROCHEMISTRY

276018 The volume of $\mathrm{H}_{2}$ obtained at S.T.P when Mg obtained by passing a current of $0.5 \mathrm{amp}$ through molten $\mathbf{M g C l}_{2}$ for 32.2 minutes is treated with excess dilute $\mathrm{HCl}$ is approximately [Eq. mass of Mg = 12]

1 $56 \mathrm{~cm}^{3}$
2 $28 \mathrm{~cm}^{3}$
3 $5.6 \mathrm{~cm}^{3}$
4 $112 \mathrm{~cm}^{3}$
COMEDK-2012
ELECTROCHEMISTRY

276023 A metal plate of dimension of $\left(1 \times 2 \mathrm{~cm}^{2}\right)$ has to be coated on both the sides by $\mathrm{Cu}$ metal. How long does it take to deposit $\mathrm{Cu}$ of $0.01 \mathrm{~cm}$ thickness, if $1.5 \mathrm{~A}$ current is used?
[Electrochemical equivalence of $\mathrm{Cu}$ is $\mathbf{0 . 0 0 0 3}$ $\mathrm{g} / \mathrm{c}$ and the density of $\mathrm{Cu}$ is $9 \mathrm{~g} / \mathrm{cm}^{3}$ ]

1 $400 \mathrm{~s}$
2 $800 \mathrm{~s}$
3 $120 \mathrm{~s}$
4 $160 \mathrm{~s}$
TS-EAMCET (Engg.)
ELECTROCHEMISTRY

276025 A current of 0.5 amperes is passed for 30 minute through a voltmeter containing $\mathrm{CuSO}_{4}$ solution. Find the Weight of $\mathrm{Cu}$ deposited.

1 $3.18 \mathrm{~g}$
2 $0.318 \mathrm{~g}$
3 $0.296 \mathrm{~g}$
4 $0.150 \mathrm{~g}$
AMU-2010
ELECTROCHEMISTRY

276026 When one Faraday of electricity is passed through $\mathrm{CuSO}_{4}$ solution, number of atoms formed at cathode will be

1 $6.02 \times 10^{23}$
2 $3.01 \times 10^{23}$
3 2
4 $6.02 \times 10^{-23}$
Assam CEE-2018
For More Updates join with Us