10 minutes maximum! (can you do it in 5?)
Q1-4 Select the correct gas. Which of the following gases... |
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1. relights a glowing splint? | |
2. turns limewater milky? | |
3. bleaches damp blue litmus paper white? | |
4. ignites with a pop when a burning splint is applied | |
Q5-9:
Select the correct test for the gas which is produced …. |
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5. …..during the complete combustion of a fuel. | |
6. ….when zinc reacts with hydrochloric acid. | |
7. …during the catalytic decomposition of hydrogen peroxide. | |
8. ……when sodium metal reacts with water. | |
9. …..during the electrolysis of molten zinc chloride. | |
10. An unknown compound was added to acid and produced a gas which turned limewater milky. The compound could be ….
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