WHEN COPPER REACTS WITH HYDROCLORIC ACID, THEN WHAT IS FORMED?

Asked by Manish | 13th Aug, 2014, 05:19: PM

Expert Answer:

Copper does not react with hydrochloric acid in the sense of single replacement because copper is lower on the activity series than hydrogen which is the active component of the acid. This is due to the change of an electron configuration of [Ar] 4s2 3d9 to [Ar] 4s1 3d10 when it comes in contact with reactive species. This half-filled subshells which are more stable makes copper less reactive. So copper will form complex if the concentrated HCl is used.

Answered by Arvind Diwale | 14th Aug, 2014, 10:55: AM