Question

State few natural indicators using which pH of a solution can be tested?

Answer 1

Answer:

Red (Purple) Cabbage: Red cabbage contains a mixture of pigments used to indicate a wide pH range. Rose Petals: The oxonium salt of cyanin turns from red to blue in a basic solution. Turmeric: This spice contains a yellow pigment, curcumin, which changes from yellow at pH 7.4 to red at pH 8.6