CBSC Session 2022-23.
Sample Papers of Class 10th, Science.
Important Questions of Class 10th NCERT.
NCERT Science Solutions, of Class 10th.
NCERT book extra Questions.
CBSC Board and other State board.
Write the name and molecular formula of the first member of the homologous series of alkynes.
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(i) Ethyne
(ii) C2H2