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QJEEM19Chb6e5: JEE Main 2019 Chemistry - Class 12 JEEM19Chb6e5 Solution: A solution of Ni(NO 3 ) 2 is electrolysed between platinum…

A solution of Ni(NO3)2 is electrolysed between platinum electrodes using 0.1 Faraday electricity. How many mole of Ni will be deposited at the cathode?

Multiple Choice Options

  • A 0.1
  • B 0.15
  • C 0.2
  • D 0.05

Step-by-Step Verified Solution

Cathode reaction :

Ni+2 + 2e- →\to Ni(s)

∴\therefore From 2 mole of electrons 1 mole of Ni is deposited at the cathode.

So from 0.1 F or 0.1 mole of electrons 12×0.1{1 \over 2} \times 0.1 = 0.05 mole of Ni is deposited at the cathode.

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