Question

Cost of electricity for the production of x L H₂ at NTP at cathode is Rs x; then cost of production of x L O₂ at NTP at anode will be (assume 1 mole of electron as one unit of electricity) 

(A) 2x 

(B) 4x 

(C) 16x 

(D) 32x

Answer 1

Correct Answer is: (A) 2x 

Volume of H₂ / Volume of O₂ = Equivalent volume of H₂ / Equivalent volume of O₂,

x/volume of O₂ = 11.2/5.6 = 2,

Volume of O₂ = x/2

Thus, x/2 L O₂ requires Rs x for its production.

i.e., x L O₂ will require Rs x for its production.