1.

Total volume of gases evolved at STP when 36gof H20 are completely electrolysed betweenplatinum electrodesa) 22.4 lit b) 44.8 lit c) 33.6 lit d) 67.2 lit

Answer»

36g H20 contains = 36/18 = 2 moles of H20

and the reaction pf electrolysis is

2H2O → 2H2 +O2

so, when 2 mol of H2O will be electrolysd , then 2 moles of H2 and 1 mole of O2 will be evolved

so, total volume will be (2+1)*(22.4) = 67.2 L

option d



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