Which of the following is correct ?A. For a reversible reaction for which `Delta_(f)H = -ve` B. For reversible reaction for which `Delta_(f)H = +ve` C. D. Activation energy of a reaction is a barrier to energy tranfer (KE to PE) between reacting molecules that must be overcome, which is due to need of bonds stretch as well as steric repulsions.

Which of the following is correct ?A. For a reversible reaction for wh

1.	Which of the following is correct ?A. For a reversible reaction for which `Delta_(f)H = -ve` B. For reversible reaction for which `Delta_(f)H = +ve` C. D. Activation energy of a reaction is a barrier to energy tranfer (KE to PE) between reacting molecules that must be overcome, which is due to need of bonds stretch as well as steric repulsions.
Answer» Correct Answer - D Graph in A is plotted for endothermic reaction and graph in B is plotted for exothermic reactions actually. (C ) `E_(a_(1)) lt E_(a_(2)) lt E_(a_(3))` is correct.

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