Question

“Homologues are the compounds of carbon which differ in -CH2-“. Roshni thinks that
this difference is common in all homologous series. Two examples support Roshni

Answer 1

Yes, Roshni was right,

2 examples which support her statement are

1) Alkanes- They have same general formula of C$_{n}$H$_{2n+2}$

- CH4, C2H6, C3H8

Alkenes- They have same general formula of  C$_{n}$H$_{2n}$

-C2H4, C3H6, C4H8

From above examples it is observed that 2 consecutive homologues differ by CH2 group.

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