Question

What would be the colour of universal indicator in a solution of sodium carbonate

Answer 1

Answer:

It should be blue as it is an alkali.

Explanation:

Answer 2

Answer:

blue is wrong answer because all colours are pH like - red is highly strong

yellow is weak base

green is boundary colours means neutral

blue is highly base

and,

Na is metal so he is red (highly acid)

Co is non metal so he is (highly base)

and

strong acid + strong base = neutral(green)

so , correct option is (d) green