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Write a chemical equation of a reaction ...

Write a chemical equation of a reaction where the following change have taken place.
change in colour

Text Solution

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i) Change in colour
`Cu_(g)+ 2AgNO_(3) to Cu(NO_(3))_(2(aq))+2Ag`.
The solution will become blue in colour and shining silver metal will be deposited
ii) Change in temperature.
`NaOH+HCI to NaCl+H_(2)O+"Heat"`. The temperature will increase because heat is evolved.
iii) Formation of precipitate.
`Pb(NO_(3))_(2(aq)) +2KI_(aq) to Pbl_(2)+2KNO_(3)(aq)`
Yellow PPt Yellow precipitate of `PbI_(2)` will be formed,
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