Identification of Acids and Bases

Complete the following table:

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?

An indicator is used to determine certain chemical properties of a substance.

Identify the indicator given below and write the nature of the solution on test tubes A and B.

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_____.

You are given the following solutions,

(i) salt solution (ii) soda water and (iii)shampoo solution

How will you identify if the solution is acidic, basic or neutral using red cabbage ?

Peel a beet root with the help of peeler and cut into small pieces with the help of knife. Take these pieces in a mortar and crush well and obtain extract by adding water. Filter the extract through a filter paper and collect filtrate. Take four transparent glasses and label it as A, B, C, D and write your observation in table given.

Describe how the colour of universal indicator changes in different types of solutions.

A solution turns methyl orange into yellow the approximate $\mathrm{pH}$ of solution is

What happens, when methyl orange solution mixed with $\mathrm{HCl}$?

The indicators which turn red in acid solution are:

Which of the given substance is an acid/base indicator:

Which of the following is not an acid-base indicator?

Litmus solution is extracted from

_____ is an indicator made from the lichens.

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

Indicators that are synthesised in the laboratory are known as _____ indicators.