Everyday Science MCQs
Q Permanent hardness of water may be removed by the addition of___________?
  • A A. Sodium carbonate
  • B B. Alum
  • C C. Potassium permanganate
  • D D. Lime
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Word of the Day
16 Jul
Volatile
(of a substance) easily evaporated at normal temperatures.
Ψ¨Ψ―Ω„ΨͺΫ’ Ω…Ψ²Ψ§Ψ¬ ΩˆΨ§Ω„Ψ§ΨŒ کافور ءفΨͺ

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