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For which of the following reactions `DeltaS` is negative ?

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For which of the following reactions `DeltaS` is negative ?
A. `Mg_((s)) + Cl_(2(g)) rarr MgCl_(2(s))`
B. `H_(2)O_((I)) rarr H_(2)O_((g))`
C. `CaCO_(3(s)) rarr CaO_((s)) + CO_(2(g))`
D. `I_(2(g)) rarr 2I_((g))`

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Correct Answer - A::B::C
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