Which of the following is an acid-base indicator?

Which of the following set of substances contain acids?

On adding phenolphthalein indicator to a colourless solution, no change is observed. What is the nature of this solution?

The correct way of making a solution of acid in water is to

Look at the given reaction.

Hydrochloric acid + Sodium hydroxide (base) → Sodium chloride (salt) + Water

Sodium chloride formed in this reaction remains in solution form. Can we get solid sodium chloride from this solution? Suggest a method (if any).