1. |
Which reaction take place in electrochemical cell ?
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Answer:
Option (d) |
2. |
Which cell differs from principle point of view?
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Answer:
Option (b) |
3. |
The electrochemical cell stops working after sometime. Why ?
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Answer:
Option (b) |
4. |
What is used for the measurement of accurate potential of electrochemical cell ?
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Answer:
Option (d) |
5. |
If M, N, O, P and Q are in the increasing order of their standard potentials in standard conditions of their standard half cells, then by combination of which two half cells maximum cell potential will be obtained ?
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Answer:
Option (b) |
6. |
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Answer:
Option (c) |
7. |
The solution of silver nitrate become coloured when pieces of nickle are added to solution of silver nitrate because
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Answer:
Option (a) |
8. |
The values of standard reduction potential of X, Y and Z metals are 0.34 V, 0.80 V and -0.45 V. Mention their order of strength as reducing agent
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Answer:
Option (b) |
9. |
The resistance of any uniform conductor is
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Answer:
Option (b) |
10. |
Which is more corroded when the iron plates of steamers are connected with block of Zn metal and kept in contact of sea water ?
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Answer:
Option (b) |