Recent questions in Chemistry

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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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What are alkynes? Also give molecular, condensed, structural and cross and dot formula of a few alkynes?

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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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