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Explain the salient features of periods ...

Explain the salient features of periods in the modern periodic table.

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SURA PUBLICATION-SELF-EVALUATION 7 MARKS-ANSWER ALL THE QUESTIONS (CHEMISTRY)
  1. (a) What happens during a chemical change? (b) Calculate the number ...

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  2. Write notes on various factors affecting solubility .

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  3. Explain the salient features of periods in the modern periodic table.

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  4. (a) What are Bio degradable and Non-biodegradable detergents? (b) Gi...

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  5. (a) What is a homoatomic molecule? Give two examples. (b) State two ...

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  6. explain solid solution ,Liquid solution and Gaseous solution .

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  7. Explain hydraulic washing with a neat diagram.

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  8. Explain the salient features of periods in the modern periodic table.

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  9. (a) The aquatic animals live more in cold regionn why? (b) How to id...

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  10. Give a test to identify the presence of alcohol .

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  11. How will you determine the atomicity of gases using Avogadro's hypothe...

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  12. Explain the mechanism of cleansing action of soaps and detergents.

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  13. On analysing an impure sample of sodium chloride, the percentage of ch...

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  14. (a) Wriite any three uses of copper. (b) Ionisation energy decreases...

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  15. Explain smelting process.

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  16. (a) How do detergents cause water pollution? Suggest remedial measures...

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  17. In what way hygroscopic substances differ from deliquescent dub...

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  18. Calculate the gram molecular mass of the following (i) CH(4) (ii) CO...

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  19. A hot saturated solution of copper sulphate forms crystals as it ...

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  20. (a) Explain Bassermerisation. (b) What s molar volume of a gas?

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