A) \[Na\]
B) \[K\]
C) \[Mg\]
D) \[Ca\]
Correct Answer: C
Solution :
Dolamite \[MgC{{O}_{3}}.\]\[CaC{{O}_{3}}\]Magnesite | \[MgC{{O}_{3}}\] |
Carnallite | KCl.\[MgC{{l}_{2}}.\,6{{H}_{2}}O\] |
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