Final answer:
Nicotine was named after Jean Nicot because he introduced tobacco to the French court and promoted its medicinal properties.
Step-by-step explanation:
Nicotine was named after Jean Nicot because he was the French ambassador to Portugal in the 16th century and introduced tobacco to the French court. he sent tobacco seeds and leaves to the queen mother, Catherine de' Medici, and promoted the medicinal properties of tobacco. as a result the plant was named Nicotiana in his honor, and the active chemical constituent in tobacco was later named nicotine.