Class 8 - Chemistry Set 1
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1. Minimata disease is caused due to *
1 point
2. For ideal fuel calorific value should be *
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3. An example of slow combustion reaction is *
1 point
4. Polyester is blended with which material to make shirts, skirts and other dress materials ? *
1 point
5. Which of the following pairs will show more vigrous reaction than Al with dil HCl ? *
1 point
6. The hardest coal containing maximum amount of carbon in it is *
1 point
7. The hardest coal containing maximum amount of carbon in it is *
1 point
8. Which material will result in rapid oxidation when ignited ? *
1 point
9. Which of the following is not a man-made object? *
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10. Which of the following metals exist in their native state in nature? 1. Copper 2. Gold 3. Zinc 4. Silver *
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11. A region of ________ is called flame. *
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12. The main constituents of natural gas is - *
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13. Petroleum is called as *
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14. Which of the following synthetic fibre is used to make toothbrush bristles? *
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15. Liquefied hydrogen is a ______ fuel. *
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16. CFC is *
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17. An element present in maximum amount in our body is *
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18. Eutrophication is a type of *
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19. Potable water is drinking water which should be free from *
1 point
20. Polymer : Cellulose :: Monomer : 'X'. Identify 'X'. *
1 point
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