CBSE Class 10 Science 2017 Outside Delhi Term II Set 1 Paper

Question : 1

Total: 12

Write the molecular formula of the 2‌nd ‌ and 3‌rd ‌ member of the homologous series where the first member is ethyne.

Solution:

(i) CH3C≡CH (propyne), n=3
(ii) CH3CH2C≡CH (Butyne), n=4

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