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CBSE Class 10 Science 2015 Term II Outside Delhi Set 2

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Question : 1 of 12
Marks: +1, -0
Write the number of covalent bonds in the molecule of propane, C3H8\mathrm{C}_3\mathrm{H}_8.
Solution:  
H−C∣H∣H−C∣H∣H−C∣H∣H−H10  Bonds\underset{10\;\text{Bonds}}{\mathrm{H}-\overset{\mathrm{H}}{\overset{\vert}{\underset{\mathrm{H}}{\underset{\vert}{\mathrm{C}}}}}-\overset{\mathrm{H}}{\overset{\vert}{\underset{\mathrm{H}}{\underset{\vert}{\mathrm{C}}}}}-\overset{\mathrm{H}}{\overset{\vert}{\underset{\mathrm{H}}{\underset{\vert}{\mathrm{C}}}}}-\mathrm{H}}
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