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Q.

The formation of Calcium fluoride is: 

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a

Covalent bond 

b

None of the above 

c

Ionic bond 

d

Both a and b 

answer is A.

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Detailed Solution

Calcium loses two electrons from its valence shell while fluorine can gain only one electron to attain its nearest inert gas configuration. Hence, the two electrons lost by one calcium atom are accepted by two fluorine atoms. So the formation of CaF is ionic bond. 

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