Match the following. The correct answer is (A) (B) (C) (D)
Match the following.
The correct answer is
(A) (B) (C) (D)
IV V II I
IV V I II
IV I III II
II V IV I
Solution
(A) Feldspar (orthoclase) $\left(\mathrm{KAlSi}_3 \mathrm{O}_8\right)$ It is used in the manufacture of porcelain.
(B) Asbestos $\left\{\mathrm{CaMg}_3\left(\mathrm{SiO}_3\right)_4\right\}$ It is used for fireproof sheets, cloths etc.
(C) Pyrargyrite (Ruby silver) $\left(\mathrm{Ag}_3 \mathrm{SbS}_3\right)$ It is an ore of silver.
(D) Diaspore $\left(\mathrm{Al}_2 \mathrm{O}_3 \cdot \mathrm{H}_2 \mathrm{O}\right)$ It is an ore of aluminium.
