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What are proteins? Give their chemical composition
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State one important use of each: (i) Ethene (ii) Acetylene (iii) Chloroform (iv) Carbontetra chloride?
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What is the cause of different colour of hair
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What is the origin of organic compounds?
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What is meant by biochemistry
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Define petroleum
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What is the colour of phenolphthalein in acidic and basic solution?
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Why RNA is called messenger?
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What is gravity separation
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Write the uses of Fuel Oil?
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What are complex salts?
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Explain the chemistry of removing the temporary hardness by boiling water
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Plants are source of oils. Justify?
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How intensive cultivation of crops causes water pollution?
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What are hydrocarbons? How are they classified?
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Justify the statement House hold water is the reason of water pollution?
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Describe the chemical properties of alkanes?
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Make a table to show the conjugate acid-base pairs of common species?
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Why CO considered a health hazard?
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