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A few drops of sulphuric acid are added ...

A few drops of sulphuric acid are added to water before electrolysis. Why ?

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PEARSON IIT JEE FOUNDATION-ELECTRICITY-TEST YOUR CONCEPTS (Very Short Answer Type Questions)
  1. Define conventional and electronic current.

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  2. What is the function of powdered carbon present in the electrolyte o...

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  3. A few drops of sulphuric acid are added to water before electrolysis. ...

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  4. What are the circuit symbols for a plug key and a tap key ?

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  5. What is the use of magnesium oxide used in an immersion heater ?

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  6. The process due to which an uncharged insulated metallic conductor ...

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  7. What is an electric cell ? What is a primary and a secondary cell ?

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  8. What is electricity?

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  9. A body gains 25xx 10^(18) electrons, by rubbing, it with another bod...

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  10. What is electroplating ?

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  11. In a dry cell, the cylindrical container made of zinc acts as a te...

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  12. What is meant by charging a secondary cell ?

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  13. How many types of the charges are there ? State the unit of charge ?

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  14. A body contains 3 C of positive charge. Does this refer to the total...

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  15. The commercial unit of electrical energy is

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  16. State SI and practical units of electrical energy .

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  17. What is meant by charging a body ?

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  18. If two charged bodies attract each other, what could the nature of cha...

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  19. What is electrical resistance ?

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  20. What is an electrolyte?

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