Which of the following is not correct?

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Na++Cl-⟶NaCl

Ca2++2 F-⟶CaF2

Na++F-⟶NaF

Ca2++2Na+⟶CaNa2

answer is D.

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Detailed Solution

Both Ca and Na are metals and form positive ions, which repel each other. Hence, the given reaction option (d) is not feasible.

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