Three alcohols were mixed with slightly colored water: pentan-1-ol, methanol and propan-1-ol.
Can you tell where alcohol was introduced and interpret your comment?
The importance of the $H$ bond of the hydroxyl group of the alcohols with water decreases as the carbon chain becomes predominant, so methanol was introduced into the glass 1, propan-1-ol in 2 and pentan-1-ol in 3.
