give example of double displacement reaction with change in colour at least 2
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BaCl2 + Na2SO4 --> BaSO4 + NaCl
formation of white ppt BaSO4
Pb(NO3)2 + 2KI --> 2PbI + 2KNO3
Formation of ppt yellow in colour
formation of white ppt BaSO4
Pb(NO3)2 + 2KI --> 2PbI + 2KNO3
Formation of ppt yellow in colour
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