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प्रश्न
A molecule of ammonia (NH3) has
विकल्प
only single bonds
only double bonds
only triple bonds
two double bonds and one single bond
उत्तर
only single bonds
Explanation -
Three hydrogen atoms share their electrons with one nitrogen atom to form a molecule of ammonia, NH3. This allows nitrogen and hydrogen atom to attain the electronic configuration of the nearest noble gas Ne and He, respectively. The shared pair of electron is said to contribute a single covalent bond. So there are 3 single covalent bonds in ammonia.
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