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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.
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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