Question

A number of elements are available in earth’s crust but most abundant elements are ______.

Options

• \[\ce{Al}\] and \[\ce{Fe}\]

• \[\ce{Al}\] and \[\ce{Cu}\]

• \[\ce{Fe}\] and \[\ce{Cu}\]

• \[\ce{Cu}\] and \[\ce{Ag}\]

Answer 1

A number of elements are available in earth’s crust but most abundant elements are \[\ce{Al}\] and \[\ce{Fe}\].

Explanation:

Among metals, aluminium is the third most abundant element in earth's crust (8.3% approx. by weight). It is major component of many igneous minerals including mica and clays. Iron is the second most abundant metal in the earth's crust.