if sulphate is written as so4 then why nitrate is written as no3 not no4

Asked by isha0311 | 28th Jun, 2015, 12:37: PM

Expert Answer:

Some polyatomic anions contain oxygen which are called oxyanions. If an element forms two oxyanions, then one with less oxygen is given a name ending in -ite and the one with more oxgyen is given a name that ends in -ate.

For example,

NO2- Nitrite
NO3- Nitrate
SO32- Sulphite
SO42- Sulphate

Therefore, sulphate is written as SO4 and nitrate is written as NO3.

Answered by Prachi Sawant | 28th Jun, 2015, 07:54: PM