The times taken for iodine to be liberated in the reaction between sodium thiosulphate and hydrochloric acid at various temperature are as follows. These results suggest that

A. for a 10^o rise in temperature, rate of reaction is double  
B. for a 10 ^o rise in temperature, rate of reaction is halved
C. time taken for iodine to appear does not depend on temperature
D. for a 10 ^o rise in temperature rate of reaction is tripled

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Correct Answer: A