Question

The bond formed between a calcium ion and oxide ion is
(a) Covalent
(b) Ionic
(c) Covalent as well as ionic
(d) Coordinate valent​

Answer 1

Explanation:

The bond formed between a calcium ion and oxide ion is

b)ionic bond

because first thing noticed that its written ions

and a metal and non metal always form ionic bond

Answer 2

Answer:

OPTION B

The bond formed between a calcium ion and oxide ion is IONIC

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