Question

you are given three materials in the form of an solution acid magnesium hydroxide and sodium sulphate describe how will you classify the substance as acidic basic and neutral using purple cabbage solution​

Answer 1

Answer:

If the colour of the solution turns red, we can say the solution is acidic

If the colour turns green, it shows that the solution is basic

If it remainsunchanged, it is neutral in nature

Explanation:

Purple cabbage solution is an indicator of a neutral solution.

When you add an acid to the solution, ir will turn red. So we can say, all acids turn purple cabbage solution red

Again, Magnesium Hydroxide is a base. If you add this to purple cabbage solution, it will turn green, i.e, all base turn the colour of purple cabbage solution green.

Sodium Sulphate is neither acidic nor basic, i.e, it is a neutral salt. So the colour of the purple cabbage solution remains unchanged

Hope that helps

Answer 2

Answer:

 Take purple cabbage solution in three different test tubes and mark

them as A, B and C.

 Add few drops of solution of citric acid, magnesium hydroxide and

sodium sulphate to the test tubes A, B and C respectively.

 Observe the color change.

 Test tube-A: Color changes from purple to red, shows the presence of

acid.

 Test tube –B: Colour changes from purple to Green, shows the presence

of base.

 Test tube- C: No colour change, shows that it is neutral.