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Question
For a reaction 1/2 A ⇒ 2B, rate of disappearance of A is related 't o the appearance of B by the expression:
Options
`(-d[A])/(dt) = 4(d[B])/(dt)`
`(-d[A])/(dt) = 1/4(d[B])/(dt)`
`(-d[A])/(dt) = 1/4(d[B])/(dt)`
`(-d[A])/(dt) = (d[B])/(dt)`
MCQ
Solution
`(-d[A])/(dt) = 1/4(d[B])/(dt)`
Explanation:
Rate = `1/(1/2) = (d[A])/(dt) = 1/2 (d[B])/(dt) = (-d[A])/(dt) = 1/4 (d[B])/(dt)`
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