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In acidic medium, the rate of reaction between BrO3and Br ions is given as 
It means that

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the change in pH of the solution will not affect the rate of reaction
rate constant of the reaction is 2 s-1
the reaction rate increases by 4 times on doubling the concentration of H+ ions.
All of the above

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detailed solution

Correct option is C

Since, the rate law contains [H+] term. This means that rate changes with variation in the value of pH.

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In a reaction,2xy, the concentration of x decreases from 3.0 M to 1.5 M in 4 min. The rate of the reaction is 

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