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Two electrolytic cells, one containing acidified ferrous chloride and another acidified ferric chloride, are connected in series. The ratio of iron deposited at cathodes in the two cells will be
  • a)
    3 : 1
  • b)
    2 : 1
  • c)
    1 : 1
  • d)
    3 : 2
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Two electrolytic cells, one containing acidified ferrous chloride and ...
In FeCl2​, Fe+2 is present

& in FeCl3​, Fe+3 is present

At cathode:−Fe+2+2e−⟶Fe−(i)

                        Fe+3+3e−⟶Fe−(ii)

Equivalent weight of Fe in (i)=nAtomicweight​=2Atomicweight​

Equivalent weight of Fe in (ii)=3Atomicweight​

∴ Ratio of iron deposited at cathodes=A/3A/2​=3:2
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Community Answer
Two electrolytic cells, one containing acidified ferrous chloride and ...
Explanation:

Electrolysis of acidified ferrous chloride (FeCl2):
- In this cell, iron (Fe2+) ions are reduced at the cathode to form solid iron.
- The half-reaction for the reduction of Fe2+ ions is: Fe2+ + 2e- → Fe(s)

Electrolysis of acidified ferric chloride (FeCl3):
- In this cell, iron (Fe3+) ions are reduced at the cathode to form solid iron.
- The half-reaction for the reduction of Fe3+ ions is: Fe3+ + 3e- → Fe(s)

Ratio of iron deposited at cathodes:
- The ratio of the number of electrons required for the reduction of Fe2+ ions to Fe3+ ions is 2:3.
- Since the cells are connected in series, the same amount of current flows through both cells.
- The amount of iron deposited at the cathodes is directly proportional to the number of electrons transferred in the reduction reaction.
- Therefore, the ratio of iron deposited at the cathodes in the two cells will be 3:2 (Fe3+ : Fe2+), corresponding to the ratio of 3:2 for the reduction of Fe3+ to Fe2+ ions.
Therefore, the correct answer is option 'D' (3:2).
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Two electrolytic cells, one containing acidified ferrous chloride and another acidified ferric chloride, are connected in series. The ratio of iron deposited at cathodes in the two cells will bea)3 : 1b)2 : 1c)1 : 1d)3 : 2Correct answer is option 'D'. Can you explain this answer?
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Two electrolytic cells, one containing acidified ferrous chloride and another acidified ferric chloride, are connected in series. The ratio of iron deposited at cathodes in the two cells will bea)3 : 1b)2 : 1c)1 : 1d)3 : 2Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Two electrolytic cells, one containing acidified ferrous chloride and another acidified ferric chloride, are connected in series. The ratio of iron deposited at cathodes in the two cells will bea)3 : 1b)2 : 1c)1 : 1d)3 : 2Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two electrolytic cells, one containing acidified ferrous chloride and another acidified ferric chloride, are connected in series. The ratio of iron deposited at cathodes in the two cells will bea)3 : 1b)2 : 1c)1 : 1d)3 : 2Correct answer is option 'D'. Can you explain this answer?.
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