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NCERT TELUGU-CHANGS AROUND US-EXERCISE
- How do you make crystallization of urea?
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- Ice convert((heat))to water convert((heat)) to water vapour. W...
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- What is a chemical change ? What are its properties ?
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- What is a physical change ? What are its properties?
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- What is rust and rusting? Why does iron rust ? What type of a change i...
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- What is crystallization ? How do you make crystallization of copper su...
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- Explain the following chemical changes : a) A piece of magnesium wire ...
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- Explain the following chemical changes : An iron nail is dropped in a ...
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- Explain the following chemical changes : Baking soda is added to vineg...
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- Write the reactions and give reasons: Carbondioxide gas in bubbled thr...
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- What are the differences between physical and chemical changes ?
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- Draw a diagram of the activity you perform to observe the reaction bet...
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- Draw a diagram of the activity you perfom to observe changes in water ...
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- Digestion of food is achange:
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- Fill in the blanks in the following statements. The chemical name of v...
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- Iron, in the presence of oxygen and moisture gets rusted after long ti...
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- The process of depositing a layer of zinc on iron is called:
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- A very fast reaction:
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- The rust on an iron article is chemically known as:
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- The colour of the coating formed on copper vessels when oxygen reacts ...
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