Asca ami Fazaner niti ta besi pechiye felteci.mane golmal lege jacce. Kindly aktu help koren. Ekoi group er upor theke niche gele kon moiuler anion / cation er akar kar besi hbe. And akoi porjayer bam theke dane gele kon mouler cation/anioner akar besi hbe. Fajaner niti onujayi cation er akar joto choto and anion er akar joto boro se toro besi somojoji.but ami ekoi group and akoi porjayer moul ba isoelectric gulate pecai felci.kokhno Na+ boro abr kokhono Na+ choto.amr confusion ta plz clear kore den..