Solved papers for JEE Main & Advanced JEE Main Paper (Held On 12 April 2014)

done JEE Main Paper (Held On 12 April 2014) Total Questions - 1

• question_answer1) How many electrons would be required to deposit 6.35 g of copper at the cathode during the electrolysis of an aqueous solution of copper sulphate? (Atomic mass of copper \[=63.5u,{{N}_{A}}=\] Avogadro's constant):   [JEE Main Online Paper ( Held On 12 Apirl  2014 )
  A)
  \[\frac{{{N}_{A}}}{20}\]                                
  done clear
  B)
  \[\frac{{{N}_{A}}}{10}\]
  done clear
  C)
  \[\frac{{{N}_{A}}}{5}\]                                  
  done clear
  D)
  \[\frac{{{N}_{A}}}{2}\]
  done clear
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