e? (4) 0.66 mol 26. A current of 9....
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e? (4) 0.66 mol 26. A current of 9.65 A flowing for 10 minutes, deposits 3.0 g of a metal. The equivalent weight of the metal is (1) 10 (2) 30 (3) 50 (4) 96.5 (27)) if 9 g of H2O is electrolysed completely with 50% current efficiency (1) 1 F of electricity will be needed (2) 3 F of electricity is needed (3) 5.6 L of O, at STP will be formed (4) 11.2 L of O, at STP will be formed 28. If the density of copper is 8.94 g/cm3, the number of Faradays required to plate an area (10cm x 10cm) of thickness of 10-2 cm using Cuso, solution as electrolyte is (1) 0.1 F (2) 0.28 F (3) Amor Fe(NO (4) Sama anod 33. Which of (1) Elec elec (2) Ele eled (3) Cat and 6 and alent vould cat sis (4) Ca oxi 34. When (1) Hy (2) 0 (3) NO Bg

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no. of moles of ( mathrm{M}_{2} mathrm{O} ) im ginen wh ( =frac{text { ghicuere wh }}{text { mol. wh }}=frac{9}{18}=0.5 ) mol [ 2 mathrm{M}_{2} mathrm{O} rightarrow 2 mathrm{M}_{2}+mathrm{O}_{2} ] 2 miker of ( x_{2} 0 ) dinoriate biforn imale of ( 0, ) at ( 5 pi P ). ( begin{aligned} text { Then } 0.25 text { mole ouny } &=varnothing 5.6 text { is onygn } &=text { ONtion }(3) end{aligned} )
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