Question

CH4,C2H6,C3H8...homologous series.why​

Answer 1

Answer:

because these differ by ch2 so they are in homology series

Step-by-step explanation:

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Answer 2

The difference between $CH_2$, then the series is homologous series.

Step-by-step explanation:

The given homologous series:

$CH_4,C_2H_6,C_3H_8$

We know that,

The general formula of alkane

$C_{n}H_{2n+2}$

Put n = 1, 2, 3 , 4, 5, ....

Put n = 1, we get

$C_{1}H_{2(1)+2}=CH_4$, Methane

Put n = 2, we get

$C_{2}H_{2(2)+2}=C_2H_6$, Ethane

Put n = 3, we get

$C_{3}H_{2(3)+2}=C_3H_8$, Propane

The difference between $CH_2$, then the series is homologous series.