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प्रश्न
Write the molecular formula of the 2nd and the 3rd member of the homologous series whose first member is methane.
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उत्तर
The general formula for the homologous series whose first member is methane is CnH2n+2.
The two consecutive members (2nd and 3rd) of this series are:
a. CH3CH3 (Ethane); where n is 2
b. CH3CH2CH3(Propane); where n is 3
The molecular formulae are C2H6 and C3H8 respectively.
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