Correct option is B
The correct answer is (b) Both dimethyl ether and ethanol.
The molecular formula C₂H₆O can represent two different compounds: ethanol and dimethyl ether. These two compounds are structural isomers, meaning they have the same molecular formula but different structural arrangements of atoms.
Ethanol (C₂H₆O):
Structure: CH₃CH₂OH (ethanol has a hydroxyl group -OH attached to an ethyl group).
Common Usage: Ethanol is widely used in alcoholic beverages, as a solvent, and in hand sanitizers.
Dimethyl Ether (C₂H₆O):
Structure: CH₃OCH₃ (dimethyl ether consists of two methyl groups (-CH₃) bonded to an oxygen atom).
Common Usage: Dimethyl ether is used as a propellant in aerosol cans and as a refrigerant.
Additional Information on Other Options:
(C) Ethanoic acid (C₂H₄O₂):
This is incorrect because ethanoic acid (acetic acid) has the molecular formula C₂H₄O₂, not C₂H₆O.
(D) Dimethyl Ether (C₂H₆O):
While dimethyl ether is indeed one of the compounds with the formula C₂H₆O, it is not the only possible compound with that formula, as ethanol is another compound with the same formula.