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Which of the following expression can be...

Which of the following expression can be used to describe the instantaneous rate of the reaction ?
`2A+B rarr A_(2)B`
(a) `(1)/(2)(-d[A])/(d t)`
(b) `(-d[A])/(d t)`
(c) `(1)/(2) (d[A_(2)B])/(d t)`
(d) `(1)/(2) (-d[A])/(d t).(d[B])/(d t)`

A

`-(dA)/(2dt)`

B

`-(dA)/(dt)`

C

`(d(A_(2)B))/(2dt)`

D

`-1/2(dA)/(dt)(dB)/(dt)`

Text Solution

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The correct Answer is:
A
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