Question

Activity 2.6
Take about 2 mL of dilute NaOH solution in a test tube and add
two drops of phenolphthalein solution.
What is the colour of the solution? Pink
Add dilute HCI Solution to the abote solution drop by drop.
Is there any colour change for the reaction mixture?
Why did the colour of phenolphthalein change after the addition
of an acid
Now add a few drops of NaOH to the above mixture.
Does the pink colour of phenolphthalein reappear?
Why do you think this has happened?​

Answer 1

Answer:

k.d crearative

Explanation:

$n \times n + 1 \\ 2$

Answer 2

Answer:

$n \times n = 2$