write the colour change when HCL and NaOH is added to

blue litmus , red litmus, metthyl orange,phenolphthalein

Hydrochloric acid-
Blue litmus- Colour changes from blue to red.
Red litmus- No change in colour.
Methyl orange- Orange to red colour.
Phenolphthalein- No change in colour.

Sodium hydroxide
Blue litmus- No change in colour
Red litmus- Colour changes from red to blue.
Methyl Orange- Orange to yellow colour
Phenolphthalein- Colourless to pink.