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Give reasons for: 'It is dangerous to sl...

Give reasons for: 'It is dangerous to sleep in a closed room in which a coal fire is burning'.

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ICSE-PRACTICAL WORK-REVIEW QUESTIONS
  1. State what you observe when a piece of moist blue litmus paper is plac...

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  2. For the elements sodium and phosphorus, state the following the form...

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  3. For the elements sodium and phosphorus, state the following The phys...

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  4. For the elements sodium and phosphorus, state the following the natu...

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  5. State what you observe when a piece of moist blue litmus paper is plac...

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  6. Write correctly a balanced equation for the following “word equation":...

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  7. What happens if carbon dioxide is bubbled into a suspension of calcium...

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  8. Give a chemical test to distinguish between the following pairs of com...

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  9. Complete the following "word" equation : lime water + carbon dioxide t...

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  10. Give reasons for: 'It is dangerous to sleep in a closed room in which ...

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  11. Give the name of an acid salt found in "Health Salts".

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  12. Name two important processes which generate or release carbon dioxide ...

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  13. Name two processes which remove carbon dioxide from the atmosphere.

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  14. Study the reaction scheme below and then answer which follow: Giv...

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  15. Study the reaction scheme below and then answer which follow: Giv...

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  16. Study the reaction scheme below and then answer which follow: Giv...

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  17. Study the reaction scheme below and then answer which follow: On ...

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  18. Explain the following: A white crust forms on the surface of lime wa...

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  19. Give the biological importance of carbon dioxide dissolved in water.

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  20. State your observations and give balanced equations of the reactions w...

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