Common Polyatomic Anions

Question 1

acetate

Answer 1

C2H3O2-

Question 2

arsenate

Answer 2

AsO4^3-

Question 3

arsenite

Answer 3

AsO3^3-

Question 4

azide

Answer 4

Na3-

Question 5

bicarbonate

Answer 5

HCO3-

Question 6

bisulfate

Answer 6

HSO4-

Question 7

borate

Answer 7

BO3^3-

Question 8

bromate

Answer 8

BrO3-

Question 9

bromite

Answer 9

BrO2-

Question 10

carbonate

Answer 10

CO3^2-

Question 11

chlorate

Answer 11

ClO3-

Question 12

chlorite

Answer 12

ClO2-

Question 13

Chromate

Answer 13

CrO4^2-

Question 14

cyanide

Answer 14

CN-

Question 15

dichromate

Answer 15

Cr2O7^2-

Question 16

dihydrogen phosphate

Answer 16

H2PO4-

Question 17

hydrogen phosphate

Answer 17

HPO4^2-

Question 18

hydroxide

Answer 18

OH-

Question 19

hypochlorite

Answer 19

ClO-

Question 20

iodate

Answer 20

IO3-

Question 21

iodite

Answer 21

IO2-

Question 22

manganate

Answer 22

MnO4^2-

Question 23

nitrate

Answer 23

NO3-

Question 24

nitrite

Answer 24

NO2-

Question 25

oxalate

Answer 25

C2O4^2-

Question 26

perchlorate

Answer 26

ClO4-

Question 27

permanganate

Answer 27

MnO4-

Question 28

peroxide

Answer 28

O2^2-

Question 29

phosphate

Answer 29

PO4^3-

Question 30

phosphite

Answer 30

PO3^3-

Question 31

silicate

Answer 31

SiO3^2-

Question 32

sulfate

Answer 32

SO4^2-

Question 33

sulfite

Answer 33

SO3^2-

Question 34

thiocyanate

Answer 34

SCN-

Question 35

thiosulfate

Answer 35

S2O3^2-