IIT JEE Questions And Answers :: Redox Reactions And Electrochemistry: part1



IIT JEE : Redox Reactions And Electrochemistry QUESTIONS AND ANSWERS :: part1 : 1 to 5

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2014 examinations :

1.It is impossible to measure the actual voltage of any half cell by itself because

of resistance of wire
electrical neutrality is maintained
a reaction does not take place of its own
both half cell reactions occur simultaneously

2.An electrochemical cell can be changed into an electrolytic cell by

changing the electrolytes in two half cells
changing the conc. of the electrolytes
providing higher potential from outside
reversing the electrodes

3.In electrolysis, one mole of aluminium atoms is deposited by

five moles of electrons
three moles of electrons
two moles of electrons
one mole of electrons

4.During discharge in the case of lead storage batteries density of sulphuric acid

increases
decreases
may decrease or increase
remains constant

5.For reducing 1 mole of ferrous ions to iron the number of faradays of electricity required will be

4
1.5
0.5
1

More Redox Reactions And Electrochemistry QUESTIONS AND ANSWERS available in next pages

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