Doubt by Gazala Yasmeen

the conjugate base of H2PO4- is HPO4-2 so why not 3 option ??why only 1 option is correct?

Answers

Answer by nitesh chaudhary

please mention the options too

Answer by Gazala Yasmeen

now plz explain

Answer by Gazala Yasmeen

it's okay...I have understand...