(i) (a) only
(ii) (b) only
(iii) (c) only
(iv) (a) and (b)
Correct Answer: (i) (a) only
Explanation: The graph (a) represents the exothermic reaction.
(i) (a) only
(ii) (b) only
(iii) (c) only
(iv) (a) and (b)
Correct Answer: (i) (a) only
Explanation: The graph (a) represents the exothermic reaction.