Moderate

Carnalite has chemical formula

Correct answer: B. KCI.MgCl2.6H20

  • A. KCl
  • B. KCI.MgCl2.6H20
  • C. Na2BrO7.10H2O
  • D. CaCO3.MgCO3

Explanation

KCl: While potassium chloride (KCl) is a common compound, it is not carnalite.Na2BrO7.10H2O: This is the formula for sodium bromate decahydrate, not carnalite.CaCO3.MgCO3: This is the formula for dolomite, another mineral compound different from carnalite.KCl.MgCl2.6H2O: This is the accurate formula for carnalite, a hydrated potassium magnesium chloride mineral. It contains potassium chloride (KCl), magnesium chloride (MgCl2), and six water molecules (6H2O).Therefore, based on the chemical composition, option (b) is the only one that correctly represents the formula of carnalite

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