Answer: Option (4) is the correct answer.
Explanation:
When sulfuric acid reacts with calcium hydroxide then it results in the formation of calcium sulfate and water.
The chemical reaction for the same will be as follows.
Thus, we can conclude that 
salt is produced when sulfuric acid and calcium hydroxide react completely.
B:Creates energy through fusion reactions
The reaction is actually endothermic because delta H is positive, indicating that it absorbing heat.
Answer:
NaCl is the one of the example of ionic compound because na conducts positive charge and CL conduct negative charge
