Match the following industrial processes with the catalysts used:

Cracking of hydrocarbons – Fe
Each process is paired with its appropriate catalyst, enhancing the reaction's efficiency. For example, Ostwald's process uses \( \text{CuCl}_2 \) to produce nitric acid from ammonia.
| Molisch's lest | Barfoed Test | Biuret Test | |
|---|---|---|---|
| A | Positive | Negative | Negativde |
| B | Positive | Positive | Negative |
| C | Negative | Negative | Positive |
The rate law for the decomposition of hydrogen iodide is - = d[HI]/dt = k[HI]2. The units of rate constant k are:
For a first-order reaction, the graph between \( \log \frac{a}{(a - x)} \) (on y-axis) and time (in min, on x-axis) gave a straight line passing through the origin. The slope is \( 2 \times 10^{-3} \) min\(^{-1}\). What is the rate constant (in min\(^{-1}\))?
In Haber’s process of manufacture of ammonia, the ‘catalyst’, the ‘promoter’, and‘ poison for the catalyst’ are respectively: