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Cost of electricity for the production o...

Cost of electricity for the production of x L `H_2` at STP at cathode is Rs. x, then cost of electricity for the production of x L `O_2` gas at STP at anode will be (assume 1 mol of electrons as one unit electricity) :

A

`2x `

B

4x

C

16x

D

32 x

Text Solution

Verified by Experts

The correct Answer is:
A
At cathode ` 2H^(+) + 2e^(-) to H_2 `
`{:("RS : x xL"),("At anode " 2OH^(-1) (1)/(2) O_2 + H_2O + 2e^(-)):}`
`(x)/(2) L " of " O_2 to Rsx , xL " of " O_2 to ? ((x)/(x) xx x)/(2) = 2x (Rs )`
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