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Electricity and Chemistry MCQ Questions and Answers PDF Download eBook

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MCQs on Electricity & Chemistry Quiz PDF Download eBook

MCQ: Examples of non-conductors include

  1. sulphur
  2. phosphorus
  3. wood
  4. all of above

D

MCQ: Which one is correct about cations?

  1. they are positively charged ions
  2. they are negatively charged ions
  3. they travel towards anode during electrolysis
  4. they travel towards anode during polarization

A

MCQ: Duration of bright-bulb is shorter in a magnesium-copper battery because of the

  1. difference of copper and magnesium in reactivity series is lesser
  2. polarization occurs too quickly
  3. magnesium is highly reactive and dissolves very rapidly in acid
  4. none of above

C

MCQ: Polarization occurs due to

  1. rapid dissolving of magnesium in dilute acid
  2. slow dissolving of magnesium in conc. Acid
  3. copper electrode gets covered with bubbles of hydrogen gas
  4. copper electrode gets covered with bubbles of ammonia gas

C

MCQ: Conventionally, the negative terminals are shown as a

  1. long thin line
  2. short fat line
  3. long wavy line
  4. short wavy line

B