1,3-Dimethylbenzene also known as:

Correct option is B

The correct answer is (b) m-Xylene.
• 1,3-Dimethylbenzene is also known as m-Xylene.
• Xylene is a colorless, flammable liquid with a sweet odor, widely used as a solvent in the chemical industry.
• It exists in three isomeric forms: ortho-xylene, meta-xylene, and para-xylene.
• m-Xylene is the meta isomer, with two methyl groups attached to the benzene ring at the 1 and 3 positions.
• Xylene is used in the production of plastics, synthetic fibers, and other chemicals.
• It is also used as a cleaning agent and in the formulation of paints and varnishes.
• Proper handling and safety measures are required due to its toxic and flammable nature.