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Chewing of 'pan' (killi)turns our mouth ...

Chewing of 'pan' (killi)turns our mouth red. This is:

A

Chemical change

B

Physical change

C

moderate change

D

neither physical nor chemical change

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NCERT TELUGU-CHANGS AROUND US-EXERCISE
  1. The colour of copper sulphate solution-

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  2. When water is added to magnesium oxide (ash), the substance formed is:

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  3. Chewing of 'pan' (killi)turns our mouth red. This is:

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  4. The chemical name of baking soda is

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  5. Identify the physical change among the following

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  6. Drying of wet coconut is a

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  7. The speed of rusting depends on(i) Amount of oxygen available(ii)Amoun...

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  8. A metal which is resistant to corrosion is

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  9. Sodium bicarbonate is commonly known as

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  10. The process of separating soluble solid from the solution by heating o...

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  11. The gas liberated when wood is burnt is

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  12. During a chemical change(i) New substance is formed(ii) Heat, light, r...

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  13. Which of the following metal doesnot react with oxygen

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  14. Which of the following is a chemical change

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  15. Which of the following substances show chemical change on heating

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  16. change may be reversed by reversing the experiment conditions.

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  17. Statement A : The change which can be reversed to get the original sta...

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  18. Statement A : The change in which if there is a change in shape,size, ...

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  19. When carbondioxide gas is passed through lime water, the following cha...

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  20. The metal that burns with a dazzling light when burnt in oxygen:

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