Which one of the following property is exhibited by Datura plant?

The correct answer is Option (3) → Hallucinogenic

Option (3) Hallucinogenic — Correct. Datura (and Atropa belladonna) are plants with hallucinogenic properties. They are among the plants whose products are abused as drugs.

NCERT Extract:
Drugs and Alcohol Abuse – “Cocaine, commonly called coke or crack is usually snorted. It has a potent stimulating action on central nervous system, producing a sense of euphoria and increased energy. Excessive dosage of cocaine causes hallucinations. Other well-known plants with hallucinogenic properties are Atropa belladona and Datura (Figure 7.11).”