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A certain current liberate 0.5 g of hydrogen in 2 h. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution?
  • a)
    12.7 gm
  • b)
    15.9 gm
  • c)
    31.8 gm
  • d)
    63.5 gm
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A certain current liberate 0.5 g of hydrogen in 2 h. How many grams of...
Calculation:
- The equivalent weight of hydrogen is 1 g/mol.
- Since 0.5 g of hydrogen is liberated, the charge passed through the solution is 0.5/1 = 0.5 C.
- The equivalent weight of copper is 63.5 g/mol.
- To calculate the amount of copper that can be liberated, we use the formula:
Charge = Equivalent weight x Amount of substance
Amount of substance = Charge/Equivalent weight
Amount of copper = 0.5 / 63.5 = 0.0079 mol
Mass of copper = 0.0079 x 63.5 = 0.5 g

Answer:
- Therefore, the current can liberate 0.5 g of copper in the same time. Hence, option B (15.9 gm) is the correct answer.
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A certain current liberate 0.5 g of hydrogen in 2 h. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution?a)12.7 gmb)15.9 gmc)31.8 gmd)63.5 gmCorrect answer is option 'B'. Can you explain this answer?
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A certain current liberate 0.5 g of hydrogen in 2 h. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution?a)12.7 gmb)15.9 gmc)31.8 gmd)63.5 gmCorrect answer is option 'B'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A certain current liberate 0.5 g of hydrogen in 2 h. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution?a)12.7 gmb)15.9 gmc)31.8 gmd)63.5 gmCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A certain current liberate 0.5 g of hydrogen in 2 h. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution?a)12.7 gmb)15.9 gmc)31.8 gmd)63.5 gmCorrect answer is option 'B'. Can you explain this answer?.
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