Electrolytic Cells
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CHXII03:ELECTROCHEMISTRY

330248 How many grams of water will be electrolysed by 96500 coulomb?

1 96
2 20
3 9
4 4.5
CHXII03:ELECTROCHEMISTRY

330257 How many electrons are involved in the reaction, when 0.40 F of electricity is passed through an electrolytic solution?

1 \({\rm{6}}{\rm{.642 \times 1}}{{\rm{0}}^{{\rm{25}}}}\)
2 \({\rm{1}}{\rm{.505 \times 1}}{{\rm{0}}^{{\rm{24}}}}\)
3 \({\rm{6}}{\rm{.022 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
4 \({\rm{2}}{\rm{.4088 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
MHTCET - 2020-1
CHXII03:ELECTROCHEMISTRY

330249 One Faraday of electricity is passed through molten \({\rm{A}}{{\rm{l}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}\), aqueous solution of \({\rm{CuS}}{{\rm{O}}_{\rm{4}}}\) and molten NaCl taken in three different electrolytic cells connected in series. The mole ratio of Al, Cu and Na deposited at the respective cathode is

1 \({\rm{2:3:6}}\)
2 \({\rm{6:2:3}}\)
3 \({\rm{6:3:2}}\)
4 \({\rm{1:2:3}}\)
CHXII03:ELECTROCHEMISTRY

330250 For electrode reactions,
\({\rm{M}}{{\rm{g}}^{2 + }}\left( 1 \right) + 2{e^ - } \to Mg\left( s \right)\)
\(A{l^{3 + }}\left( 1 \right) + 3{e^ - } \to Al\left( s \right)\)
How many moles of electrons are required by 1
mole of \({\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}\,\,{\rm{and}}\,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\) ?

1 \({\rm{1}}\,\,{\rm{F}}{\mkern 1mu} {\mkern 1mu} {\rm{for}}{\mkern 1mu} {\mkern 1mu} \,\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}\,{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} \,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
2 \({\rm{2}}\,\,{\rm{F}}{\mkern 1mu} \,{\mkern 1mu} {\rm{for}}\,\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} \,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
3 \({\rm{3}}\,\,{\rm{F}}{\mkern 1mu} {\mkern 1mu} \,{\rm{for}}\,\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} \,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
4 \({\rm{2F}}\,\,{\rm{forM}}{{\rm{g}}^{{\rm{2 + }}}}\,\,{\rm{and}}\,\,{\rm{3}}\,\,{\rm{F}}\,\,{\rm{for}}\,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
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CHXII03:ELECTROCHEMISTRY

330248 How many grams of water will be electrolysed by 96500 coulomb?

1 96
2 20
3 9
4 4.5
CHXII03:ELECTROCHEMISTRY

330257 How many electrons are involved in the reaction, when 0.40 F of electricity is passed through an electrolytic solution?

1 \({\rm{6}}{\rm{.642 \times 1}}{{\rm{0}}^{{\rm{25}}}}\)
2 \({\rm{1}}{\rm{.505 \times 1}}{{\rm{0}}^{{\rm{24}}}}\)
3 \({\rm{6}}{\rm{.022 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
4 \({\rm{2}}{\rm{.4088 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
MHTCET - 2020-1
CHXII03:ELECTROCHEMISTRY

330249 One Faraday of electricity is passed through molten \({\rm{A}}{{\rm{l}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}\), aqueous solution of \({\rm{CuS}}{{\rm{O}}_{\rm{4}}}\) and molten NaCl taken in three different electrolytic cells connected in series. The mole ratio of Al, Cu and Na deposited at the respective cathode is

1 \({\rm{2:3:6}}\)
2 \({\rm{6:2:3}}\)
3 \({\rm{6:3:2}}\)
4 \({\rm{1:2:3}}\)
CHXII03:ELECTROCHEMISTRY

330250 For electrode reactions,
\({\rm{M}}{{\rm{g}}^{2 + }}\left( 1 \right) + 2{e^ - } \to Mg\left( s \right)\)
\(A{l^{3 + }}\left( 1 \right) + 3{e^ - } \to Al\left( s \right)\)
How many moles of electrons are required by 1
mole of \({\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}\,\,{\rm{and}}\,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\) ?

1 \({\rm{1}}\,\,{\rm{F}}{\mkern 1mu} {\mkern 1mu} {\rm{for}}{\mkern 1mu} {\mkern 1mu} \,\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}\,{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} \,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
2 \({\rm{2}}\,\,{\rm{F}}{\mkern 1mu} \,{\mkern 1mu} {\rm{for}}\,\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} \,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
3 \({\rm{3}}\,\,{\rm{F}}{\mkern 1mu} {\mkern 1mu} \,{\rm{for}}\,\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} \,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
4 \({\rm{2F}}\,\,{\rm{forM}}{{\rm{g}}^{{\rm{2 + }}}}\,\,{\rm{and}}\,\,{\rm{3}}\,\,{\rm{F}}\,\,{\rm{for}}\,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
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CHXII03:ELECTROCHEMISTRY

330248 How many grams of water will be electrolysed by 96500 coulomb?

1 96
2 20
3 9
4 4.5
CHXII03:ELECTROCHEMISTRY

330257 How many electrons are involved in the reaction, when 0.40 F of electricity is passed through an electrolytic solution?

1 \({\rm{6}}{\rm{.642 \times 1}}{{\rm{0}}^{{\rm{25}}}}\)
2 \({\rm{1}}{\rm{.505 \times 1}}{{\rm{0}}^{{\rm{24}}}}\)
3 \({\rm{6}}{\rm{.022 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
4 \({\rm{2}}{\rm{.4088 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
MHTCET - 2020-1
CHXII03:ELECTROCHEMISTRY

330249 One Faraday of electricity is passed through molten \({\rm{A}}{{\rm{l}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}\), aqueous solution of \({\rm{CuS}}{{\rm{O}}_{\rm{4}}}\) and molten NaCl taken in three different electrolytic cells connected in series. The mole ratio of Al, Cu and Na deposited at the respective cathode is

1 \({\rm{2:3:6}}\)
2 \({\rm{6:2:3}}\)
3 \({\rm{6:3:2}}\)
4 \({\rm{1:2:3}}\)
CHXII03:ELECTROCHEMISTRY

330250 For electrode reactions,
\({\rm{M}}{{\rm{g}}^{2 + }}\left( 1 \right) + 2{e^ - } \to Mg\left( s \right)\)
\(A{l^{3 + }}\left( 1 \right) + 3{e^ - } \to Al\left( s \right)\)
How many moles of electrons are required by 1
mole of \({\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}\,\,{\rm{and}}\,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\) ?

1 \({\rm{1}}\,\,{\rm{F}}{\mkern 1mu} {\mkern 1mu} {\rm{for}}{\mkern 1mu} {\mkern 1mu} \,\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}\,{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} \,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
2 \({\rm{2}}\,\,{\rm{F}}{\mkern 1mu} \,{\mkern 1mu} {\rm{for}}\,\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} \,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
3 \({\rm{3}}\,\,{\rm{F}}{\mkern 1mu} {\mkern 1mu} \,{\rm{for}}\,\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} \,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
4 \({\rm{2F}}\,\,{\rm{forM}}{{\rm{g}}^{{\rm{2 + }}}}\,\,{\rm{and}}\,\,{\rm{3}}\,\,{\rm{F}}\,\,{\rm{for}}\,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
NEET DIGITAL LIBRARY
CHXII03:ELECTROCHEMISTRY

330248 How many grams of water will be electrolysed by 96500 coulomb?

1 96
2 20
3 9
4 4.5
CHXII03:ELECTROCHEMISTRY

330257 How many electrons are involved in the reaction, when 0.40 F of electricity is passed through an electrolytic solution?

1 \({\rm{6}}{\rm{.642 \times 1}}{{\rm{0}}^{{\rm{25}}}}\)
2 \({\rm{1}}{\rm{.505 \times 1}}{{\rm{0}}^{{\rm{24}}}}\)
3 \({\rm{6}}{\rm{.022 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
4 \({\rm{2}}{\rm{.4088 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
MHTCET - 2020-1
CHXII03:ELECTROCHEMISTRY

330249 One Faraday of electricity is passed through molten \({\rm{A}}{{\rm{l}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}\), aqueous solution of \({\rm{CuS}}{{\rm{O}}_{\rm{4}}}\) and molten NaCl taken in three different electrolytic cells connected in series. The mole ratio of Al, Cu and Na deposited at the respective cathode is

1 \({\rm{2:3:6}}\)
2 \({\rm{6:2:3}}\)
3 \({\rm{6:3:2}}\)
4 \({\rm{1:2:3}}\)
CHXII03:ELECTROCHEMISTRY

330250 For electrode reactions,
\({\rm{M}}{{\rm{g}}^{2 + }}\left( 1 \right) + 2{e^ - } \to Mg\left( s \right)\)
\(A{l^{3 + }}\left( 1 \right) + 3{e^ - } \to Al\left( s \right)\)
How many moles of electrons are required by 1
mole of \({\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}\,\,{\rm{and}}\,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\) ?

1 \({\rm{1}}\,\,{\rm{F}}{\mkern 1mu} {\mkern 1mu} {\rm{for}}{\mkern 1mu} {\mkern 1mu} \,\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}\,{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} \,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
2 \({\rm{2}}\,\,{\rm{F}}{\mkern 1mu} \,{\mkern 1mu} {\rm{for}}\,\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} \,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
3 \({\rm{3}}\,\,{\rm{F}}{\mkern 1mu} {\mkern 1mu} \,{\rm{for}}\,\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} \,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
4 \({\rm{2F}}\,\,{\rm{forM}}{{\rm{g}}^{{\rm{2 + }}}}\,\,{\rm{and}}\,\,{\rm{3}}\,\,{\rm{F}}\,\,{\rm{for}}\,\,{\rm{A}}{{\rm{l}}^{{\rm{3 + }}}}\)
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