If CA is the quantity of reactants initially present, the quantity left after ‘n’ half periods will be equal to__________________? / Chemical Engineering / Q&A, MCQs / Q&A / By admin If CA is the quantity of reactants initially present, the quantity left after ‘n’ half periods will be equal to__________________? A. (CA/2)n B. (½)n CA (Correct) C. (CA/2)1/n D. (CA)1/2n