Question

Important ore of zinc is

• A. calamine
• B. cryolite
• C. cassiterite
• D. malachite

Answer 1

Answer: (A)

calamine

Answer 2

(a) Calamine $\left( ZnCO _{3}\right)=$ ore of zinc (b) Cryolite $\left( Na _{3} AlF _{6}\right)=$ ore of aluminium (c) Cassiterite $\left( SnO _{2}\right)=$ ore of tin (d) Malachite \left\\{ CuCO _{3} \cdot Cu ( OH )_{2}\right\\}. $=$ ore of copper