A solution containing one mole per litre of each `Cu(NO_(3))_(2), AgNO_(3), Hg_(2)(NO_(3))_(2)` is being electrolysed by using inert electrodes. The values of standard electrode potentials in volts (reduction potentials) are `Ag^(+)//Ag = +0.80 V, HG_(2)^(2+)//Hg = +0.79 V` `Cu^(+)//Cu = +0.34 V, Mg^(2+)//Mg = -2.37 V` With increasing valtage, the sequence of deposition of metals on the cathode will beA. `Ag, Hg, Cu`B. `Cu, Hg, Ag`C. `Ag, Hg, Cu, Mg`D. `Mg, Cu, Hg, Ag`

A solution containing one mole per litre of each `Cu(NO_(3))_(2), AgNO

1.	A solution containing one mole per litre of each `Cu(NO_(3))_(2), AgNO_(3), Hg_(2)(NO_(3))_(2)` is being electrolysed by using inert electrodes. The values of standard electrode potentials in volts (reduction potentials) are `Ag^(+)//Ag = +0.80 V, HG_(2)^(2+)//Hg = +0.79 V` `Cu^(+)//Cu = +0.34 V, Mg^(2+)//Mg = -2.37 V` With increasing valtage, the sequence of deposition of metals on the cathode will beA. `Ag, Hg, Cu`B. `Cu, Hg, Ag`C. `Ag, Hg, Cu, Mg`D. `Mg, Cu, Hg, Ag`
Answer» Correct Answer - A

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Define molar conductivity of a solution and explain how molar conductivity changes with change in concentration of a solution for a weak and a strong electrolyte.
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Based on the data given below, the correcy order of reducing power is: `Fe_((aq.))^(3+) + e rarr Fe_((aq.))^(2+), E^(@) = +0.77 V` `Al_((aq.))^(3+) + 3e rarr Al_((s)), E^(@) = -1.66 V` `Br_(2(aq.)) + 2e rarr 2Br_((aq.))^(-), E^(@) = +1.08 V`A. `Br^(-) lt Fe^(2+) lt Al`B. `Fe^(2+) lt Al lt Br^-`C. `Al lt Br^(-) lt Fe^(2+)`D. `Al lt Fe^(2+) lt Br^(-)`
What are elementary reactions ?

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