Question

A salt X' is analysed by dissolving it in distilled water and tested with universal indicator
i) Describe its nature if it produces green colour in universal indicator .
ii) From which acid and base, salt 'X' is formed if it produces yellow colour in universal
indicator
iii) What could be the nature of 'X' if it is formed from NaOH and CH3 COOH.​

Answer 1

Answer:

i)neutral

ii) strong acid and weak base .because it is acidic salt

iii) basic salt because base is strong base

Explanation:

colours observed on pH scale

pH 0,1,2 3,4 5,6 7 8,9 10,11 12,13,14

R O Y G B I V

Answer 2

i) It will be a neutral salt.

ii) The salt will be having weak base and strong acid.

iii)  The compound X will be alkaline in nature.

Explanation:

When adding universal indicator in a solution appearance of green colour shows the neutrality of the solution. The pH of the neutral solution is 7.

If on addition of universal indicator in a solution shows yellow colour it means the solution is acidic hence a weak base and a strong acid reacted to form an acidic salt.

CH3COOH+NaOH--------- CH3COONa +NaOH

                                                  X

It is a salt having weak acid (CH3COOH) and a strong base (NaOH)

When Acetic acid is added to sodium acetate solution, the H+ concentration decreases and the pH  moves towards basicity.

learn more...

https://brainly.in/question/15329594

https://brainly.in/question/6576244