1.

In which of the following cases, rate of disappearance of any reactant at a given instant equals to rate of appearance of any product

Answer»

`H_(2)+F_(2) to 2HF`
`N_(2)+3H_(2) to 2NH_(3)`
`PCl_(5) to PCl_(3)+Cl_(2)`
`H_(2)+(1)/(2)O_(2) to H_(2)O`

ANSWER :C


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