dry cells

mcqspedia.com has 5 Question/Answers about Topic dry cells

Selective discharge occurs

Selective discharge occurs
  • A. if more difference is in reactivity series
  • B. if low difference is in activity series
  • C. if more than one type of anions is attracted to cathode
  • D. if more than one type of anions or Cations are attracted to cathode or anode
  • Correct Answer: Option D

In a dry cell, electrolyte paste is formed of

In a dry cell, electrolyte paste is formed of
  • A. ammonium sulphate
  • B. ammonium nitrate
  • C. ammonium chloride
  • D. zinc sulphate
  • Correct Answer: Option C

Selective charges occurs for the

Selective charges occurs for the
  • A. ions which require least energy to be discharged
  • B. ions which require most energy to be discharged
  • C. elements of group VII
  • D. metal chlorides
  • Correct Answer: Option A

Advantages dry cells offer are that they are

Advantages dry cells offer are that they are
  • A. cheap
  • B. convenient
  • C. portable
  • D. all of these
  • Correct Answer: Option D

In a dry cell, leaking occurs because

In a dry cell, leaking occurs because
  • A. zinc electrode has dissolved away
  • B. carbon electrode has dissolved away
  • C. magnese oxide has been used up
  • D. polarization cannot more be prevented at carbon electrode
  • Correct Answer: Option A