MCQ
When $PbO_2$ reacts with conc. $HNO_3$ the gas evolved may be
- A$NO_2$
- ✓$O_2$
- C$N_2$
- D$N_2O$
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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?
(1) $C{H_3}CON{H_2}$
(2) $C{H_3}C{H_2}N{H_2}$
(3) $ Ph-C{H_2}CON{H_2}$
