Question

to an aqueous solution of sodium hydroxide a few drops of phenolphthalein were added . what do observe ? to this solution small amount of dil .hcl was added what do you observe now ? explain your answer​

Answer 1

Explanation:

In NaOH , the phenolphthalein solution will change the colour of the solution in pink colour.

but due to addition of Dil. HCl the colour will change to light pink.

Answer 2

Answer:

When to an equation solution of sodium hydroxide a few drops of phenolphthalein were added, the solution gets a pink color, as NaOH is base. When a small amount of dilute HCl is added, the pink color starts to fades due to the neutralization reaction occurring between base (NaOH) and acid (HCl).