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The decompostion of phosphine (PH(3))...

The decompostion of phosphine `(PH_(3))` on tungsten at low pressure is a first order reaction it is because the

A

Rate is proportional to the surface coverage

B

Rate is inversely proportional to the surface coverage

C

Rate in independent of the surface coverage

D

Rate of decomposition is very slow

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The correct Answer is:
A
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