The correct answer is option 1: sulphuric acid and solution of sodium hydrogen carbonate.

The Soda-acid fire extinguisher is a type of fire extinguisher that uses a chemical reaction between sulphuric acid and sodium hydrogen carbonate to produce carbon dioxide gas, which is used to extinguish the fire.

Let`s analyze the other options to understand why they are incorrect:

Option 2: nitric acid and solution of sodium hydrogen carbonate. Nitric acid is not commonly used in fire extinguishers, and the combination of nitric acid and sodium hydrogen carbonate would not result in the desired chemical reaction.

Option 3: sulphuric acid and solution of sodium carbonate. While sulphuric acid is the correct ingredient, the use of sodium carbonate instead of sodium hydrogen carbonate would not produce the desired reaction to extinguish the fire.

Option 4: sulphuric acid and solution of potassium carbonate. Similar to option 3, the use of potassium carbonate instead of sodium hydrogen carbonate would not produce the desired reaction.

In summary, the correct combination of ingredients for a Soda-acid fire extinguisher is sulphuric acid and a solution of sodium hydrogen carbonate.