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प्रश्न
Match the following:
| Column A | Column B |
| (a) Helium | (1) Electric bulb |
| (b) Neon | (2) Thermometer |
| (c) Argon | (3) Semiconductor |
| (d) Germanium | (4) Weather balloons |
| (e) Mercury | (5) Advertising signboards |
जोड़ियाँ मिलाइएँ
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उत्तर
| Column A | Answers |
| (a) Helium | (4) Weather balloons |
| (b) Neon | (5) Advertising signboards |
| (c) Argon | (1) Electric bulb |
| (d) Germanium | (3) Semiconductor |
| (e) Mercury | (2) Thermometer |
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