The correct statement or statements are

A

pH of $$10^{-8}\text{ NaOH}$$ is 8

B

pH of $$10^{-8}\text{ HCl}$$ is less than 7

C

Aqueous solution of $$\mathrm{FeCl_3}$$ is acidic

D

Na$$\mathrm{H_2}$$PO2 will react with NaOH to form $$\mathrm{Na_2HPO_2}$$