Q.

Consider the following statements
1. In laboratory, sulphur dioxide is prepared by Cu + H2SO4.
2. Carnallite is a source of sulphur.
3. Brinstone is another name of sulphur.
Which of the above is/are true about sulphur?
(a)Only 1
(b)1 and 3 Right sign
(c)2 and 3
(d)1, 2 and 3
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