Question

Choose the correct option:-​

Answer 1

Answer:

I think it is the 3rd one.

If its wrong, I'm sorry.

Explanation:

Answer 2

Answer:

Option(1) phenolphthalein turns colourless to pink .

Explanation:

Methyl orange turns red to blue.

Phenolphthalein turns colourless to pink.

Litmus paper turns red to blue.

As Mg(OH)2 is Alkali (Basic)

So it turns pink.

Hence, option(1) is correct.