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Though tin stone is oxide of tin, yet ro...

Though tin stone is oxide of tin, yet roasting is carried out for this ore. Why ?

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Tin stone contains a good amount of sulphur with it, which is removed by roasting.
`S(s)+O_2(g)toSO_2uarr`
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AAKASH INSTITUTE ENGLISH-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Assignment (Section-D) Assertion-Reason Type Question
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