When ammonia is dissolved in water number of hydrogen bonds formed by ammonia are:
Correct answer: A. 1
- A. 1
- B. 2
- C. 3
- D. 4
Explanation
When ammonia is dissolved in water, each ammonia molecule can form one hydrogen bond with a water molecule. This is because the nitrogen atom in ammonia has a lone pair of electrons, which can form a hydrogen bond with the hydrogen atom of a water molecule. The hydrogen atom of a water molecule is also attracted to the lone pair of electrons on the oxygen atom of another water molecule, so each water molecule can form two hydrogen bonds. This means that a maximum of four hydrogen bonds can be formed between two ammonia molecules and two water molecules.
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About Hydrogen Bonding
Hydrogen bonding is the strong attraction between hydrogen attached to nitrogen, oxygen or fluorine and an electronegative atom in the same or another molecule. It explains unusual boiling points, viscosity, surface tension, water's properties and the difference between intermolecular and intramolecular hydrogen bonding.
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