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Important Questions on Chemical Effects of Electric Current

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8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Practice>Q 7
The solution that can conduct electricity is of 
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8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Practice>Q 8
Which one of the following solutions will not conduct electricity?
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8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Practice>Q 9
The presence of a small amount of impurities makes water 
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8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Practice>Q 10
The device which is used to detect the small current flowing in the circuit is
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8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Practice>Q 11

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Which of the following solution will not make the bulb glow in the figure?

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8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Practice>Q 12

Boojho And Paheli performed the same experiments taking similar bulbs and cells with two different solutions A and B as shown in figure

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8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Practice>Q 13
The process of depositing a thin layer of any superior metal over an object of a cheaper metal with the help of electricity is called:
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8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Practice>Q 14
Boojho's uncle has set up an electroplating factory near his village. He should dispose off the waste of the factory