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Which of the following is an endothermic processA. `Cs^(+)(g)+e^(-)rarrCs(g)`B. `O^(-)(g)+e^(-)rarrO^(2-)(g)`C. `C(g)+e^(-)rarrC^(-)(g)`D. A and C both

Answer» Correct Answer - B
(A) `Cs^(+)(g)+e^(-) rarr Cs (g)` (exothermic process)
(B) Successive electron gain enthalpy is endothermic process.
(C ) First electron gain enthalpy of carbon is exothermic process


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