Question

write the molecular formula of second and third member of homologous series whose first number is methane

Answer 1

The 2nd member is C2H6 ( ethane ) and the 3rd is C3H8 ( Propane)

The homologus series of methane follow the formula of CnH2n+2 .Here n is a natural number and gives the corresponding member

Please mark it the brainliest .

Answer 2

First member - methane $\mathsf{CH_4}$

This member belongs to 'Alkane'.

Formula of Alkane - $\mathsf{C_nH_2_n_+_2}$

Put n = 2, we get

✒$\mathsf{C_2H_6}$ - Ethane

Put n = 3, we get

✒$\mathsf{C_3H_8}$ - Propane

^^"