​T of BTEX (Air pollutant) stands for.​

Correct option is B

BTEX is an acronym for a group of volatile organic compounds that are common air pollutants: Benzene, Toluene, Ethylbenzene, and Xylene. These compounds are primarily emitted from gasoline vapors, vehicle exhaust, and industrial emissions. The "T" in BTEX specifically stands for Toluene, which is widely used as an industrial solvent and in fuel formulations.

Toluene is a colorless, water-insoluble liquid with a smell associated with paint thinners. It poses health risks including neurological effects when inhaled in high concentrations.

Other options are unrelated to BTEX:

Tetra Ethyl Lead (TEL) is an additive formerly used in gasoline but not part of BTEX.

TriNitro Toluene (TNT) is an explosive, unrelated to air pollution in this context.

Tri Chloroethylene (TCE) is an industrial solvent but not part of BTEX.

Hence, the correct answer is Toluene.
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Information Booster:
​BTEX compounds are significant due to their toxicity and role in forming ground-level ozone and smog.

Benzene is carcinogenic, and exposure limits are strictly regulated.

Toluene can cause dizziness, headaches, and long-term neurological damage.

Ethylbenzene and Xylene are also toxic and contribute to air pollution hazards.

Monitoring BTEX levels is essential for occupational health and urban air quality control.

BTEX compounds are emitted mainly from vehicle exhaust, petroleum refining, and solvent use.