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Q.

The element that exhibits neither electrovalency nor covalency is

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a

Neon
 

b

Sodium
 

c

Barium
 

d

Chlorine

answer is A.

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Detailed Solution

  • Electrovalency : When an element combines with another element by losing or gaining electrons to form a compound.
  • Covalency : The number of electrons shared by an atom with another atom during the formation of covalent molecule to have eight electrons in its outermost shell.
  • Neon is stable gas due to stable electronic configuration (ns2np6) so no sharing or loss or gaining of electrons.
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