Natural Indicators

The yellow colour of turmeric changes to red on addition of soap solution. When substance P is added to turmeric, there is no change in colour.

Which of the following is definitely true about substance P?

If China rose petal is put in the solution of Milk of Magnesia, it will change its color from light pink to_____.

Which color change is applicable when china rose petals is put in the solution of $H_{2}C{O}_3$?

What will happen if turmeric paper is made in contact with caustic soda solution?

When turmeric paper is placed in contact of HCl, it will_____.

Litmus solution is extracted from

The litmus paper or the litmus solution is obtained from _____ plant.

Which of these will dissociate more in water to form hydronium ions?

We use dilute acids with indicators because:

A yellow stain of curry on a white cloth turns reddish brown when it comes in contact with soap. Why does it happen?

Which of the following sources are used to extract the natural indicator - litmus? 

The indicator that turns green in a basic solution _____.

The methyl orange solution turns red in

Study the given table carefully.

P and Q could be respectively 

Cotyledons are also called-