You are given the following solutions:
Hydrochloric acid (HCl), sulphuric acid (H2SO4), nitric acid (HNO3), acetic acid (CH3COOH), sodium hydroxide (NaOH), calcium hydroxide [(Ca(OH)2], potassium hydroxide (KOH), magnesium hydroxide [Mg(OH)2] and ammonium hydroxide (NH4OH). Give the colour change for each of these solutions with red litmus, blue litmus, phenolphthalein and methyl orange solutions.
|
Given solution |
Red litmus solution |
Blue litmus solution |
Phenolphthalein solution |
Methyl orange solution |
|
HCl |
no change |
turns red |
colourless |
pink |
|
H2SO4 |
no change |
turns red |
colourless |
pink |
|
HNO3 |
no change |
turns red |
colourless |
pink |
|
CH3COOH |
no change |
turns red |
colourless |
pink |
|
NaOH |
turns blue |
no change |
turns pink |
yellow |
|
Ca(OH)2 |
turns blue |
no change |
turns pink |
yellow |
|
Mg(OH)2 |
turns blue |
no change |
turns pink |
yellow |
|
KOH |
turns blue |
no change |
turns pink |
yellow |
|
NH4OH |
turns blue |
no change |
turns pink |
yellow |
