Most Important Selected Qs for JEE AdvancedChemistryElectrochemistry
Electrolysis of aq. Solution of CH ₃ COOK is carried out. If 2 amp current is passed for 402 minutes, what volume (at STP) of gases could be produced if current efficiency is 80 % (assume no absorption of gases)
Correct answer
17.92
Step-by-step solution
aligned & 2 CH ₃ COOK evectroyss C ₂ H ₆+2 CO ₂+ H ₂+2 KOH +2 H ₂ O & Q =2 402 60 & moles of e ⁻=0.5 ; used mole of e ⁻= 0.5 80 100 =0.4 & as 2 mole e ⁻ 4 mole gases & so 0.4 ~mole ⁻ 0.4 4 2 =0.8 mole gases & V =0.8 22.4 Lt =17.92 Lt . aligned