Equal volumes of two equimolar solutions of reactants A and B are mixed, and the reaction A+ B → C occurs. At the end of 1 h, A is 75% reacted. How much of A will be left unreacted atthe end of 2 h if the reaction is:(a) First order in A and zero order in B?(b) First order in A and first order in B?(c) Zero order in both A and B?

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