Question

1. A solution turns red litmus
1 point
paper blue. If a drop of
phenolphthalein is added to it,
O it turns pink
O it turns red again
O O O O
it remains colourless
it turns blue​

Answer 1

Answer:

it turns into pink is correct

Answer 2

Answer:

it turns pink

why?

because when red litmus changes to blue the solution is base, you can remember through b for base an b for blue.

and when phenolphthalein is added to it it changes pink.

REMEMBER

• ACID SOLUTION- BLUE LITMUS RED AND RED NO COLOUR CHANGE AND WITH PHENOLPHTHALEIN TRANSPARENT
• BASIC SOLUTION- RED LITMUS BLUE AND BLUE NO COLOUR CHANGE AND WITH PHENOLPHTHALEIN PINK