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प्रश्न
What do the following denote ?
- N
- 2N
- N2
- 2N2
टिप्पणी लिखिए
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उत्तर
- N refers to an atom of nitrogen.
- 2N represents two atoms of nitrogen which are not chemically bonded.
- N2 refers to a molecule of nitrogen gas. Two atoms of nitrogen chemically bond to give a molecule of nitrogen gas.
- 2N2 refers to two molecules of nitrogen gas.
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