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4

Pick out the exothermic reaction out of the following:

A. C + H2O = CO + H2

B. CaC2 + H2O = Ca(OH)2 + C2H2

C. MgCO3 = MgO + CO2

D. All (A), (B) and (C)

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Correct Answer :

B. CaC2 + H2O = Ca(OH)2 + C2H2


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