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For which of the following reactions ΔS is negative?

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For which of the following reactions ΔS is negative?

(a) Mg(s) + Cl2(g) → MgCl2(s)

(b) H2O(I) → H2O(g)

(c) CaCO3(s) → CaO(s) +CO2(g)

(d) I2(g) → 2I(g)

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1 Answer

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Option : (a) Mg(s) + Cl2(g) → MgCl2(s)

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