Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • Need explanation for: The electrochemical equivalent of a metal is 3.3 x 10-7 kg per coulomb. The mass of the metal liberated at the cathode when a 3 A current is passed for 2 second will be

The electrochemical equivalent of a metal is 3.3 x 10-7 kg per coulomb. The mass of the metal liberated at the cathode when a 3 A current is passed for 2 second will be

  • Option 1)

    19.8 x 10-7 kg

  • Option 2)

    9.9 x 10-7 kg

  • Option 3)

    6.6 x 10-7 kg

  • Option 4)

    1.1 x 10-7 kg

 

Answers (1)

best_answer

Mass of substance liberated at cathod m = Z it

 Z = electro chemical equivalent 

 = 3.3 \times 10 ^{-7}Kg /C

i = current flowing = 3A 

t = 2 sec 

m  = 3.3 \times 10 ^{-7} \times 3\times 2

 = 19.8 \times 10 ^{-7}Kg


Option 1)

19.8 x 10-7 kg

Option 2)

9.9 x 10-7 kg

Option 3)

6.6 x 10-7 kg

Option 4)

1.1 x 10-7 kg

Posted by

Avinash

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main 2024 session 2 final answer key soon at jeemain.nta.ac.in; result on April 25
anam-khan

JEE Main 2024 Session 2: Last day to challenge answer key today
anam-khan

BTech admission 2024 without JEE; top government engineering colleges, upcoming entrance exams

Latest Question