Question

What do you observe when you drop few drops of HCl to a test tube
containing:-
a) Blue Litmus paper
b) Distilled water
c) Phenolphthalein
d) Sodium Carbonate

Answer 1

Heya!!!

Answer to your question:

a)Blue litmus turns red.

b)It's pH changes. It is diluted

c) it turns colourless

d)brisk effervescence of CO2 occurs along with sodium chloride formation.

Hope it helps ^_^

Answer 2

Answer:

On dropping a few drops of HCL in a test tube containing blue litmus paper, it turns red. On dropping a few drops of HCL in a test tube containing distilled water it becomes dilute and its pH changes.

On dropping a few drops of HCL in a test tube containing phenolphthalein, it becomes colourless. On dropping a few drops of HCL in a test tube containing Sodium Carbonate, a brisk effervescence of carbon dioxide is formed with salt formation.

Explanation: