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What are the differences between physica...

What are the differences between physical and chemical changes ?

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NCERT TELUGU-CHANGS AROUND US-EXERCISE
  1. Explain the following chemical changes : Baking soda is added to vineg...

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  2. Write the reactions and give reasons: Carbondioxide gas in bubbled thr...

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  3. What are the differences between physical and chemical changes ?

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  4. Draw a diagram of the activity you perform to observe the reaction bet...

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  5. Draw a diagram of the activity you perfom to observe changes in water ...

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  6. Digestion of food is achange:

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  7. Fill in the blanks in the following statements. The chemical name of v...

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  8. Iron, in the presence of oxygen and moisture gets rusted after long ti...

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  9. The process of depositing a layer of zinc on iron is called:

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  10. A very fast reaction:

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  11. The rust on an iron article is chemically known as:

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  12. The colour of the coating formed on copper vessels when oxygen reacts ...

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  13. Vitamin C is chemically known as:

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  14. The colour of copper sulphate solution-

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

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

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  17. The chemical name of baking soda is

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  18. Identify the physical change among the following

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  19. Drying of wet coconut is a

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

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