JEE Chemistry 2023 Question with Solution

Given: A matching question between List I and List II.

Find: The correct correspondence between the four entries.

From the solution text:

• Cobalt catalyst $\rightarrow$ Methanol production
• Syngas $\rightarrow$ Coal gasification
• Nickel catalyst $\rightarrow$ Water gas production
• Brine solution $\rightarrow$ H_2$$ + Cl_2$$ production

The supporting reactions mentioned are:

for water gas related production, and electrolysis of brine gives hydrogen at cathode and chlorine at anode.

Thus the match is:

• A - IV
• B - III
• C - II
• D - I

Therefore, the correct option is D.

Given:

1. A. Cobalt catalyst
2. B. Syngas
3. C. Nickel catalyst
4. D. Brine solution

Find: Their correct matches in List II.

1. Cobalt catalyst is used in methanol production. Hence, A - IV.

2. Syngas is associated with coal gasification because coal gasification produces a mixture mainly containing CO and H$$$_2$$, called syngas. Hence, B - III.

3. Nickel catalyst is matched with water gas production. Hence, C - II.

4. Brine solution on electrolysis gives H_2$$** and **Cl_2$$. Hence, D - I.

Combining all matches: A-IV, B-III, C-II, D-I

Therefore, the correct option is D.