JEE Main & Advanced
Chemistry
Electrochemistry / विद्युत् रसायन
Question Bank
Faraday's law of electrolysis
question_answer
When electricity is passed through the solution of \[AlC{{l}_{3}},\,\,13.5\,\,gm\] of \[Al\] are deposited. The number of Faraday must be [NCERT 1974; MP PET 1992; MP PMT 1994]
A) 0.50
B) 1.00
C) 1.50
D) 2.00
Correct Answer:
C
Solution :
Eq. of Al = \[\frac{13.5}{27/3}=1.5\]. Thus 1.5 Faraday is needed.