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Questions  

NH3 and BF3 combine readily because of the formation of:

a
a covalent bond
b
a hydrogen bond
c
a coordinate bond
d
an ionic bond

detailed solution

Correct option is C

NH3 and BF3 combine readily because of the formation of a coordinate bond

While NH3 is a Lewis base, which is an electron-rich chemical, BF3 operates as a Lewis acid, which is an electron-deficient compound. Through a co-ordinate bond, ammonia may transfer its single pair of electrons from its sp3 hybrid orbital to the open p-orbital of BF3.

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