71st BPSC Prelims (2025), question 132

🔬 Science & Technology

  1. Which compound is known as a night-glowing pigment?

    1. Europium doped strontium aluminate
    2. Copper Sulphide doped zinc oxide
    3. Barium sulphate doped copper carbonate
    4. Boron oxide doped copper sulphate
    Show answer

    Answer: A — Europium doped strontium aluminate

    Europium-doped strontium aluminate is the modern glow-in-the-dark phosphor pigment.

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Bihar Public Service Commission