1.

Q2. (a)How many moles of electrons are required to :- (i)reduce 1 mol of MnO 4 to Mn2+ (ii)produce 10.0 g of Al from molten Al2O3 ?(b)How many moles of electrons are given by:- (1)8960 C (ii)a current of 1.5 A for 30 s(c)How many minutes it would take to reduce 0.20 mol of Cu* to Cu using a current of 10 A.​

Answer»

Explanation:MNO4- to mn+2oxidation number of mno4- is 5so ELECTRONS are also 5ii)10/27*31.12 eiii)e-96500xe-8960x=0.093iii)0.0005c)0.2*2=10t/96500t=64.33 MIN



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