The reaction of hydrogen an iodic monochloride is given as <br> $H_{2(g)} +2ICl_{(g)} \to 2HCl_{(g)}+I_{2(g)} $ <br> Mechanism B : <br> $H_{2(g)} +ICl_{(g)} \to HCl_{(g)}+HI_{(g)} $; Slow <br> $HI_{(g)} +ICl_{(g)} \to HCl_{(g)}+I_{2(g)} $; Fast <br> Which of the above mechanism(s) can be consistent with the given information about the reaction :