Question

colour of Hcl in phenopthalin solution ?
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Answer 1

Answer:

Pink colour .................

Answer 2

Answer:

Phenolphthalein solution becomes colourless in acidic medium whereas it shows a light pink colour in presence of an alkali.

When we add HCl to NaOH we get sodium chloride (NaCl) salt which has a neutral nature. Thus no acidic salt shall be produced.

But on adding excess HCl to NaOH the overall solution becomes acidic and the the phenolphthalein indicator becomes colourless. This is because the alkali (NaOH) has been completely neutalised but acid (HCl) remains in the solution (since it had been added in excess

I hope it helps .....