What is an homologous series? Which two of the following organic compounds belong to te same homologous series?
`C_(2)H_(6),C_(2)H_(6)O,C_(2)H_(6)O_(2),CH_(4)O`

(i) What is a catalyst ? Write the chemical equation to represent the hydrogenation of ethene. (ii) Which of the following compounds belong to the same homologous series ? C_(2)H_(6), C_(2)H_(6)O_(2), C_(2)H_(6)O, C_(4)H_(10) .

Which of the following compounds belong to same homo-logous series? C_2 H_6 O2 , C2 H2, C2 H6, CH4O2.

Which of the following compounds belong to the same homologous series? (I) C_2H_6O_2 (II) C_3H_8O (III) C_2H_6 (IV) CH_4O

Which of the following belong to the same homologous series? C_(3)C_(8),C_(4)H_(8),C_(3)H_(6)

Which of the following belong to the same homologous series? C_(3)H_(8),C_(4)H_(8),C_(4)H_(6),C_(3)H_(6) .

The number of compounds in the following compounds belong to same homologous series is CH_(2)O_(2),C_(3)H_(8)O,C_(2)H_(4)O_(2),C_(2)H_(6),C_(3)H_(6)O_(2),C_(5)H_(10)O_(2),C_(3)H_(8)

Write next two members of the homologous series C_(2)H_(6),C_(3)H_(8) .