When copper is placed in the atmosphere for sufficient time, a green crust is formed on its surface. The composition of the green crust is:

When copper is exposed to atmosphere for a longer time, a green mass deposits on its surface. Discuss the chemical reaction involved.

When copper is exposed to atmosphere for a longer time, a green mass deposits on its surface. Discuss the chemical reaction involved.

When a copper vessel is exposed to moist air for a long time, it acquires a dull green coating on its surface. The material of this green coating is a mixture of

When a copper vessel is exposed to moist air for a long time, it acquires a dull green coating on its surface. The material of this green coating is a mixture of:

(a) name an alloy of copper. State its chemical composition and ay one use. (b) Explain why, when a copper object remains in damp air for a considerable time, a green coating is formed on its surface. What is this process known as?

The green mass formed when copper is exposed to moist air has the same composition as that of