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Identify the type of reaction from the f...

Identify the type of reaction from the following equations
(i) `CH_(4) + 2O_(2) to CO_(2) + 2H_(2)O`
(ii) `Pb(NO_(3))_(2) + 2KI to PbI_(2) + 2KNO_(3)`
(iii) `CaO + H_(2)O to Ca(OH)_(2)`
(iv) `CuSO_(4) + Zn to ZnSO_(4) + Cu`.

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(i) Combustion reaction `" "` (ii) Double displacement reaction
(iii) Combination reaction `" "` (iv) Displacement reaction.
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DINESH PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS -Short Answer Questions
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