Question

Any 4 change in colour reaction

Answer 1

Chameleon chemical reaction is redox reaction which show a beautiful colour change. During the reaction, the colour is change from 1. ... 5.If less potassium permanganate is added, the final colour may be yellow but not red

if you need formula so

here is ur answer ........

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◆change in colour .

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potassium dichromate solution and sulphur dioxide are characterised by change in colour from Orange to green.

◆Change in temperature

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chemical reaction between quicklime and water is characterised by change in temperature

●CaCO3(s)+Heat-----------)Hai(s)+CO2(g)

◆formation of precipitate

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Ca(OH)2(aq)+CO2---------;-)CaCO3(s)【precipitate】+H2O(I)

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