Q. 54.0( 1 Vote )

C2H6O is the molecular formula for two compounds A and B. They have different structural formula.

i) What is this phenomenon known as?

ii) Give the structural formula of A and B.

iii) Write down their common and IUPAC names.

iv) Mention the functional groups of A and B.

Answer :

i) C2H6O is the molecular formula for two compounds A and B but have different structural formula. This phenomenon is called isomerism.


ii) The structural formula of A (CH3CH2OH) is:



The structural formula of B (CH3—O—CH3) is:



iii) Structure A


Common name: Ethyl alcohol


IUPAC name: Ethanol


Structure B


Common name: Dimethyl ether


IUPAC name: Methoxymethane


iv) The functional group of A is alcohol


The functional group of B is ether


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