Write down the cations & anions present in: (a) NH4OH (b) CaCO Share with your friends Share 1 Vanshika answered this Nh4cation and oh anion -1 View Full Answer Mandava Karthikeya answered this (a) NH4OH NH4+ (ammonium ion and it is a cation) OH-(anion) (b)CaCO There is no such compound!!! There is no compound that can exist in this form and even if it exists it will be highly unstable. The stablest compound in this form is CaCO3 and Ca2+ is cation and CO32- is the anion 1 Vidulaa answered this I think, NH4+,OH- Ca+,CO- 0