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Carnallite is a double salt. Which formula represents it?
AKAl(SO₄)₂·12H₂O
BNaCl·MgCl₂·6H₂O
CKCl·CaCl₂·4H₂O
DKCl·MgCl₂·6H₂O
Answer & Solution
Correct answer: D. KCl·MgCl₂·6H₂O
Carnallite is KCl·MgCl₂·6H₂O, which dissociates completely into simple ions in water like other double salts.
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