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List four uses of electroplating
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0
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15095
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March 22, 2018
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You are provided with a magnetic compass, an empty matchbox
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0
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2452
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March 22, 2018
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Observing that the bulb does not glow7 in the circuit shown below in A
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0
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757
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March 22, 2018
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Boojho made the circuit shown below. He wanted to observe what happens when an electric current is passed through water. But he forgot to add a few drops of lemon juice to water. Will it make any difference to his observations? Explain
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0
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4899
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March 22, 2018
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Observe the circuit given below
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0
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1652
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March 22, 2018
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An electric current is passed through a conducting solution. List four possible observations
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0
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1498
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March 22, 2018
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Observe the following circuit given below
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0
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688
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March 22, 2018
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In the circuit given below, Boojho observed that copper is deposited on the electrode
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0
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3038
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March 22, 2018
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Paheli had heard that rain water is as good as distilled water
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0
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4146
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March 22, 2018
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Is it safe for the electrician to carry out electrical repairs outdoors during heavy downpour? Explain
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0
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1435
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March 22, 2018
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The bulb does not glow in the setup shown in figure given alongside
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0
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680
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March 22, 2018
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Name three liquids, which when tested in the manner shown in figure given alongside, may cause the magnetic needle to deflect
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0
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1338
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March 22, 2018
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When the free ends of a tester are dipped into a solution, the magnetic needle shows deflection. Can you explain the reason?
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0
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751
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March 22, 2018
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Observe the following circuits carefully. In which circuit will the bulb glow?
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0
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1843
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March 22, 2018
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Why is tin electroplated on iron to make cans used for storing food?
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0
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1976
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March 22, 2018
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Paheli wants to deposit silver on an iron spoon
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0
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7712
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March 22, 2018
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Paheli set up an experiment using liquid A in the beaker as shown in figure below
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0
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5044
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March 22, 2018
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