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Identify the type of chemical reaction i...

Identify the type of chemical reaction in the following statements and define each of them :
(i) Digestion of food in our body
(ii) Rusting of iron
(iii) Heating of manganese dioxide with aluminium powder
(iv) Blue colour of copper sulphate solution disappears when iron filings are added to it.
(v) Dilute hydrochloric acid is added to sodium hydroxide solution to form sodium chloride and water.

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(i) Decomposition reaction (ii) Oxidation reaction (iii) Displacement reaction (iv) Displacement reaction (v) Neutralisation reaction.
For definition and chemical equation, consult section 1.5.
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When Al is added to sodium hydroxide solution:

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DINESH PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS -Long Answer Questions
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  15. On heating blue coloured powder of copper (II) nitrate in a boiling tu...

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  16. Give the characteristic tests for the following gases : (a) CO(2) (b)...

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  17. What happens when piece of (a) zinc metal is added to copper sulphat...

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  18. What happens when zinc granules are treated with dilute solutio of H(2...

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