Assertion(A) :Copper exhibits variable valency.Reason (R ) : Copper loses two electrons from its valence shell and it can loss one moreelectron from second last shell.

Assertion(A) :Copper exhibits variable valency.Reason (R ) : Copper lo

1.	Assertion(A) :Copper exhibits variable valency.Reason (R ) : Copper loses two electrons from its valence shell and it can loss one moreelectron from second last shell.
Answer» Both A and R are true and R is the correct EXPLANATION For A. Both A and R are true but R is not the correct explanationfor A. A is true and R is false. A is false and R is true. Solution :COPPER loses ONE electron from its valence shell to form `Cu^(+)`and can loss one more electron from SECOND last shell to from`Cu^(2+)`ion.