Cost of electricity for the production of X litre `H_(2)` at STP at cathode is Rs. X, then cost of electricity for the production of X litre `O_(2)` gas at STP at anode will be :(assume 1 "mole" of electrons as one unit of electricity)

Options

A. 2x
B. 4x
C. 16x
D. 32x

Answer

A

Explanation

`("Volume of "H_(2))/("Volume of "O_(2))=("Equivalent volume of "H_(2))/("Equivalent volume of "O_(2))`
`x/("Volume of "O_(2))=11.2/5.6 =2`
Volume of `O_(2)=x/2`
Thus, `x/2 "L O"_(2)` requires Rs. x for its production,
i.e., x L `O_(2)` will require Rs. 2x for the production.