MCQ
Which is incorrect statement about heats of combustion ?
- A

- B

- ✓$Iso-butene > trans-2-butene > 1-butene$
- D$n-Hexane < n-Heptane < n-Octane$


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| $t/s$ | $0$ | $30$ | $60$ | $90$ |
| $ Ester/$ $mol\,L^{-1}$ | $0.55$ | $0.31$ | $0.17$ | $0.085$ |
What will be the average rate of reaction between the time interval $30$ to $60\, seconds$ ?