Cement, the important building material is a mixture of oxides of several elements. Besides calcium, iron and sulphur, oxides of elements of which of the group (s) are present in the mixture?
(i) group 2
(ii) groups 2, 13 and 14
(iii) groups 2 and 13
(iv) groups 2 and 14

Answers (1)

The answer is the option (ii) Groups 2,13 and 14

Elements of group 2- calcium and group 13- aluminium and group 14- silicon, constitute Cement.

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