Methy`1` orange gives red colour in

Methyl orange gives red colour in :

Methyl orange gives red colour in

Methyl Orange gives red colour with __________.

Methyl orange gives yellow colour with………………..

Fill in the blanks : Methyl orange gives ………….. Colour in an acidic solution.

The ion which exhibits orange red colour in aqueous solution is

Sodium extract gives blood red colour when treated with FeCl_(3) . Formation of blood red colour confirms the presence of