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Yami Thakur • 9.05K Points
Tutor III Chemistry

Q. An electric kettle used for boiling hard water has a white scale diposited on its heation element. This consists of

  • (A) common salt
  • (B) sugar
  • (C) sodium carbonate
  • (D) carbonates of calcium and magnesium
  • Correct Answer - Option(D)
  • Views: 235
  • Filed under category Chemistry

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