Question
How will you prepare ethanol, propan-2-ol and 2-methylpropan-2-ol from Grignard's reagent?
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An electric current of 500 mA is passed for 1 hour and 30 minutes. Calculate the
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→(i) Quantity of electricity (or charge)
(ii) Number of Faradays of electricity
(iii) Number of electrons passed (Charge on 1 electron $=1.602 \times 10^{-19} C$ )
Write the cell representation and calculate equilibrium constant for the following redox reaction:
$Ni _{( s )}+2 Ag ^{+}( aq )(1 M ) \rightarrow Ni ^{2+}( aq )(1 M )+2 Ag _{( s )}$
$ \text { at } 25^{\circ} C$
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→$Ni _{( s )}+2 Ag ^{+}( aq )(1 M ) \rightarrow Ni ^{2+}( aq )(1 M )+2 Ag _{( s )}$
$ \text { at } 25^{\circ} C$
$ E _{ Ni }^0=-0.25 V \text { and } E _{ Ag }^0=0.799 V$
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$Pt \left| H _2( g , 1 atm )\right| H _{( aq )}^{+} p H =3.51||$ Calomel electrode
$E_{\text {cal }}=0.242 V \text { at } 25^{\circ} C$
→$Pt \left| H _2( g , 1 atm )\right| H _{( aq )}^{+} p H =3.51||$ Calomel electrode
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