Question
How many chiral center (excluding $N$ centres) are there in morphine.?




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$(A)$ Sublimation enthalpy
$(B)$ Ionisation enthalpy
$(C)$ Hydration enthalpy
$(D)$ Electron gain enthalpy
The total number of above properties that affect the reduction potential is ...... .
This reaction was studied at $-10^{\circ} C$ and the following data was obtained
| run | $[ NO ]_{0}$ | $\left[ Cl _{2}\right]_{0}$ | $r _{0}$ |
| $1$ | $0.10$ | $0.10$ | $0.18$ |
| $2$ | $0.10$ | $0.20$ | $0.35$ |
| $3$ | $0.20$ | $0.20$ | $1.40$ |
$[ NO ]_{0}$ and $\left[ Cl _{2}\right]_{0}$ are the initial concentrations and $r _{0}$ is the initial reaction rate.
The overall order of the reaction is ..........
(Round off to the Nearest Integer).