Question

Which compound contains ionic bonds?
A) CaO
B) CO2
C) NO2
D) NO

Answer 1

Hi Friend !!!!

Here is ur answer !!!

Ionic bond is turning formed between a metal and non metal .....

The ionic bond present between CaO molecule .....

Hope it helps u :-)

Answer 2

$CaO$ contains ionic bonds

Explanation:

An ionic bond is formed when an element completely transfers its valence electron to another element. The element which donates the electron is known as electropositive element or the metal and the element which accepts the electrons is known as electronegative element or non metal.

A covalent bond is formed when an element shares its valence electron with another element. This bond is formed between two non metals.

$CaO$ contain ionic bonds as it is made up of calcium metal and oxygen non metal.$CO_2$, $NO_2$ and $NO$ contain covalent bonds as they are made up of non metals only.

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