What types of bonds are present in ammonia? Write its chemical formula.

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Solution

Chemical formula
A chemical formula is used to represent the constituent atoms present in a molecule and the ratio of atoms in it.
Ammonia
The chemical formula of ammonia is ${NH}_{3}$ .
Ammonia has 3 polar covalent bonds in it between nitrogen and hydrogen.
In a covalent bond, electrons are shared between the constituent atoms of the molecule.
Here the electrons are shared between nitrogen and hydrogen.
Nitrogen shares 3 electrons, one with each hydrogen atom, hence having a 3 covalent bond between nitrogen and 3 hydrogen atoms.
The nitrogen atom is more electronegative than hydrogen hence the shared pair of electrons slightly shifts towards the electronegative atom nitrogen, hence the bond becomes polar.

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