What happens when zinc in added to the aqueous solution of copper sulphate? Give a balanced equation for the reaction. Name and define the type of reaction involved in the above reaction?
Answers
REACTIVITY SERIES
◼️Reactivity of a metal depends on which place it lies on reactivity series.
The metal which lies above in reactivity series are most reactive and will displace the metals below it.
The metal lies in middle of reactivity series are less reactive than upper ones and will displace metals below it.
The metal in the bottom of series are least reactive and will be displaced by every metal above it.
Reactivity series.
K
Na
Ca
Mg
Al
Zn
Fe
Sn
Pb
H
Cu
Hg
Ag
Copper Sulphate
Copper is a transition element with valency +1 and +2 because of its variable valency.
Suphate is the negative radica with valency -2.
When both reacts they forms copper sulphate.
Zinc
Zinc is the element which lies above copper in reactivity series.
When zinc is added to aqeous solution of copper sulphate.
Observation:-
The copper gets displaced with zinc and forms zinc sulphate since it lies above copper in reactivity series .The completion and occurence of reaction is noticed by disappearing colour of blue copper sulphate to white or colourless.
Equation:-
Reaction
The reaction above is displacement reaction.
The reaction in which an element or radical has replaced another radical in a compound its called displacement reaction.