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Which of the following is the ore of mercury ?

$\begin {array} {1 1} (A)\;Cinnabar & \quad (B)\;Sphalerite \\ (C)\;Calamine & \quad (D)\;Cassiterite \end {array}$

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Answer : Cinnabar
Sphalerite is $\text{ZnS}$. Calamine is $\text{ZnCO}_3$. Cassiterite $\text{SnO}_2$ and Cinnabar is $\text{HgS}$.
answered Aug 1, 2014 by thanvigandhi_1
 
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