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CBSE Class 10 Science 2017 Outside Delhi Term II Set 2 Paper

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Question : 1 of 12
Marks: +1, -0
Write the molecular formula of the 2nd2^{\text{nd}} and 3rd3^{\text{rd}} member of the homologous series whose first member is ethene.
Solution:  
(i) Propene: C3H6\mathrm{C}_3\mathrm{H}_6
(ii) Butene: C4H8\mathrm{C}_4\mathrm{H}_8
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