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Write scientific reason.
Coins are made from metals and alloys.
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Bring out the contribution of India’s space missions.
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Distinguish between:
Myopia - Presbyopia
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Explain concept with example/explain with the help of a balanced equation.
Corrosion
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Explain concept with example/explain with the help of a balanced equation.
Corrosion
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Draw a neat labelled diagram.
Electrolysis
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Draw a neat labelled diagram.
Electrolysis
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Draw a neat labelled diagram.
Anodizing
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Draw a neat labelled diagram.
Anodizing
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Complete flow chart given below.

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Complete flow chart given below.

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What is rust?
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Write a molecular formula for rust.
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Write a molecular formula for rust.
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Observe the following diagram and give answers.

- Name this method of prevention of corrosion.
- For prevention of which metal this method is used?
- What is used as anode in this method?
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Observe the following diagram and give answers.

- Name this method of prevention of corrosion.
- For prevention of which metal this method is used?
- What is used as anode in this method?
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Observe the following diagram and write answers.

- Name the method.
- Explain the method.
- Give two examples of this method.
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Observe the following diagram and write answers.

- Name the method.
- Explain the method.
- Give two examples of this method.
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Observe the following figure and write the answer of the question.

- Which process is shown in the figure?
- Explain the chemical reaction shown in the figure.
- Write the reactions on anode and cathode.
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