CHEMISTRY ONE LINER SET 70
1. Why Helium gas used in balloons? Its Lighter than air2. Which gas is filled in balloons? Helium
3. The main cause of air pollution in big cities is Suspended particle
4. The word ‘Brown air’ is used for – Photochemical Smoke
5. The most abundant element on the earth is Oxygen
6. Hydrogen sulphide is a Colourless gas with rotten egg smell
7. What is Peroxyl? Macro Pollutant
8. Burning Pyrites ore gives out Sulphur dioxide gas
9. Chloroform can be used as – Anaesthtic
10. Sour taste of coca cola is due to – Phosphoric acid
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