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' Misch metal ' is widely used in manufacture of which of the following

  • A.Material of car brake
  • B.Smoke detectors
  • C.Cigarette lighters
  • D.Emergency lights

Answer: C

Misch metal is used in cigarette lighters.

It is an alloy of cerium, lanthanum and other rare earths with iron, and is the 'flint' of a lighter: it is pyrophoric, so scraping it against the striker throws off sparks. It is also added to steel as a deoxidiser.

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