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Decompsition of H(2)O(2) follows a frist...

Decompsition of `H_(2)O_(2)` follows a frist order reactions. In 50 min the concentrations of `H_(2)O_(2)` decreases from 0.5 to 0.125 M in one such decomposition . When the concentration of `H_(2)O_(2)` reaches 0.05 M, the rate of fromation of `O_(2)` will be

A

`6.93 xx10^(-4) mol min ^(-1)`

B

` 2.66 L min ^(-1) "at STP"`

C

`1.34 xx 10 ^(-2) mol min ^(-1) `

D

`6.93xx 10 ^(-2) mol min ^(-1) `

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A
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