MCQOPTIONS
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| 1. |
The leaks in a refrigeration system using Freon are detected by |
| A. | Halide torch which on detection produces greenish flame lighting |
| B. | Sulphur sticks which on detection gives white smoke |
| C. | Using reagents |
| D. | Smelling |
| Answer» B. Sulphur sticks which on detection gives white smoke | |