question_answer

The electrochemical equivalent of a metal is \[3.3\times {{10}^{-7}}\,kg/coulomb\]. The mass of the metal liberated at the cathode when a 3 A current is passed for 2 seconds will be                              [SCRA 1998; AIEEE 2004; DCE 2005]

A)                    \[19.8\times {{10}^{-7}}kg\]                                      

B)                    \[9.39\times {{10}^{-7}}kg\]

C)                    \[6.6\times {{10}^{-7}}kg\]                                        

D)                    \[1.1\times {{10}^{-7}}kg\]