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(a) How do detergents cause water pollut...

(a) How do detergents cause water pollution? Suggest remedial measures to prevent this pollution.
(b) Differentiate combination and decomposition reactions.

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SURA PUBLICATION-SELF-EVALUATION 7 MARKS-ANSWER ALL THE QUESTIONS (CHEMISTRY)
  1. (a) Wriite any three uses of copper. (b) Ionisation energy decreases...

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  2. Explain smelting process.

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

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

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

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

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

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  8. How will you classify hydrocabons?

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  9. Explain the factors influcencing the rate of a reaction

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  10. How will you convert ethanol to ethane ?

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  11. (a) Define mole. (b) Distinguish between cation and an anion.

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  12. Explain the classification based on the direction of the reaction.

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  13. (a) Define heterocylic compounds. Give an example. (b) 60 grams of N...

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  14. (a) Explain the types of double displacement reactions with examples. ...

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  15. Derive the relationship between relative molecular mass and Vapour den...

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  16. (a) Powdered CaCO(3) reacts much faster with HCl than with solid marbl...

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  17. Atomic radii decreases as we move from left to right of periodic tabl...

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  18. How does pH play ann important role in everyday life?

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  19. How is ethanol manufactured from sugarcane ?

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  20. Write down the steps involved in a metallurgical process.

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