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Which of the following statement(s) is/are correct about solid catalyst?
(i) Same reactants may give different product by using different catalysts.
(ii) Catalyst is required in large quantities to catalyse reactions.
(iii) Catalyst does not change \( \Delta \mathrm{H} \) of reaction.
(iv) Catalytic activity of a solid catalyst does not depend upon the strength of chemisorption.
(a) (i) and (iii)
(b) (i) only
(c) (ii), (iii) and (iv)
(d) (iii) and (iv)
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