McqMate
| Q. |
Which gas is used in filling electric bulbs - |
| A. | Neon |
| B. | Argon |
| C. | Krypton |
| D. | Radon |
| Answer» B. Argon | |
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Explanation: Argon is used to fill incandescent light bulbs to inhibit the evaporation of the tungsten filaments and increase bulb life. |
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