MDCAT Chemistry MCQ #5387

A student observes that only one alkali metal reacts directly with nitrogen gas at room temperature to form a stable nitride. Identify this metal.

MDCAT Chemistry MCQ #5387

  1. Question 1

    Q1. A student observes that only one alkali metal reacts directly with nitrogen gas at room temperature to form a stable nitride. Identify this metal.

    • A) Lithium
    • B) Sodium
    • C) Potassium
    • D) Rubidium

    Answer: Lithium

    Explanation: Lithium is the only alkali metal reacting directly with nitrogen; Magnesium is tempting because it also forms nitrides but belongs to Group IIA.