Choose the option that correctly matches the items in Group 1 with those in Group 2.

Step 1: Define Each Phenomenon.
Coking involves the deposition of carbon materials, which fits with (II).
Poisoning is caused by the irreversible binding of molecules, fitting with (III).
Sintering occurs due to prolonged high temperatures, fitting with (I).
Step 2: Match to the Descriptions.
The matches have been verified based on standard definitions and typical catalyst behavior in industrial processes.

Oil is extracted from mustard seeds having 20 wt% oil and 80 wt% solids, using hexane as a solvent. After extraction, the hexane-free residual cake contains 1 wt% oil. Assuming negligible dissolution of cake in hexane, the percentage oil recovery in hexane is ___________ % (rounded off to the nearest integer).
The residence-time distribution (RTD) function of a reactor (in min−1) is:
\[ E(t) = \begin{cases} 1 - 2t, & \text{if } t \leq 0.5\ \text{min} \\ 0, & \text{if } t > 0.5\ \text{min} \end{cases} \]
The mean residence time of the reactor is _____ min (rounded off to 2 decimal places).