Polyatomic Ions You Need to Know

Question 1

MnO₄-

Answer 1

Permanganate

Question 2

NH₄⁺

Answer 2

Ammonium

Question 3

CN−

Answer 3

Cyanide

Question 4

Cr₂O₇2-

Answer 4

dichromate

Question 5

HCO3-

Answer 5

bicarbonate

Question 6

CO3 2-

Answer 6

carbonate

Question 7

SO4 2-

Answer 7

sulfate

Question 8

SO3 2-

Answer 8

sulfite

Question 9

NO3 -

Answer 9

nitrate

Question 10

NO2 -

Answer 10

nitrite

Question 11

PO4 3-

Answer 11

Phosphate

Question 12

PO3 3-

Answer 12

Phosphite

Question 13

ClO4 -

Answer 13

Perchlorate

Question 14

ClO3 -

Answer 14

Chlorate

Question 15

ClO2 -

Answer 15

Chlorite

Question 16

CLO-

Answer 16

Hypochorite

Question 17

OH-

Answer 17

Hydroxide

Question 18

IO3-

Answer 18

Iodate

Question 19

CrO4 2-

Answer 19

Chromate

Question 20

C4H4O6 2-

Answer 20

Tartrate

Question 21

C2H3O2 -

Answer 21

Acetate

Question 22

SCN-

Answer 22

Thiocyanate

Question 23

S2O3-

Answer 23

Thiosulfate

Question 24

BO3 3-

Answer 24

Borate

Question 25

BrO3-

Answer 25

Bromate

Question 26

AsO4 3-

Answer 26

Arsenate

Question 27

C2O4 2-

Answer 27

oxolate