Source: Extra Practice
A student accidentally spills a small amount of an unknown liquid on a turmeric paper. The paper turns from yellow to reddish-brown. What can be concluded about the nature of the liquid?
Options
Option A
It is acidic
Option B
It is neutral
Option C is correct
It is basic
Option D
It is corrosive
Explanation
Turmeric is a natural indicator. It remains yellow in acidic and neutral solutions but turns reddish-brown or red in basic solutions. Since the turmeric paper changed to reddish-brown, the unknown liquid must be basic in nature.