Question

A student prepared two solutions (1) dil. HCI
and (ii) distilled water in separate test tubes.
She forgot to label the tubes. Both solutions are
colourless. Solutions of litmus, phenolphthalein
and lime water are available to her. How will
she distinguish between the two solutions?​

Answer 1

Answer:

phenolphthalein she should use...As both them have different ph

Answer 2

Answer:

Use litmus solution

Explanation:

add litmus solution to both test tube,

dil hcl changes colour

while water doesn't.