Symbols and Ions

Question 1

Ammonium

Answer 1

NH⁴⁺

Question 2

Lithium

Answer 2

Li⁺

Question 3

Sodium

Answer 3

Na⁺

Question 4

Potassium

Answer 4

K⁺

Question 5

Silver(I)

Answer 5

Ag⁺

Question 6

Copper(I)

Answer 6

Cu⁺

Question 7

Hydrogen

Answer 7

H⁺

Question 8

Magnesium

Answer 8

Mg²⁺

Question 9

Calcium

Answer 9

Ca2⁺

Question 10

Zinc

Answer 10

Zn²⁺

Question 11

Iron(II)

Answer 11

Fe²⁺

Question 12

Copper(II)

Answer 12

Cu²⁺

Question 13

Lead(II)

Answer 13

Pb²⁺

Question 14

Aluminium

Answer 14

Al³⁺

Question 15

Iron(III)

Answer 15

Fe³⁺

Question 16

Lead(IV)

Answer 16

Pb⁴⁺

Question 17

Tin(IV)

Answer 17

Sn4⁺

Question 18

Fluoride

Answer 18

F⁻

Question 19

Chloride

Answer 19

Cl⁻

Question 20

Bromide

Answer 20

Br⁻

Question 21

Bicarbonate

Answer 21

HCO ⁻

³

Question 22

Bisulphate

Answer 22

HSO ⁻

⁴

Question 23

Bisulphite

Answer 23

HSO ⁻

³

Question 24

Hydride

Answer 24

H⁻

Question 25

Hydroxide

Answer 25

OH⁻

Question 26

Nitrate

Answer 26

NO ⁻

³

Question 27

Nitrite

Answer 27

NO²⁻

Question 28

Acetate

Answer 28

CH COO⁻

³

Question 29

Sulphate

Answer 29

SO ²⁻

⁴

Question 30

Sulphite

Answer 30

SO ²⁻

³

Question 31

Sulphide

Answer 31

S²⁻

Question 32

Oxide

Answer 32

O²⁻

Question 33

Carbonate

Answer 33

CO ²⁻

³

Question 34

Nitride

Answer 34

N³⁻

Question 35

Phosphate

Answer 35

PO ³⁻

⁴

Question 36

Phosphide

Answer 36

P³⁻

Question 37

Iodide

Answer 37

I⁻

Question 38

What is the Atomicity of Argon?

a) Monoatomic
b) Diatomic
c) Tetra-atomic
d) Poly-atomic

Answer 38

Monoatomic

Question 39

What is the Atomicity of Helium?

a) Monoatomic
b) Diatomic
c) Tetra-atomic
d) Poly-atomic

Answer 39

Monoatomic

Question 40

What is the Atomicity of Oxygen?

a) Monoatomic
b) Diatomic
c) Tetra-atomic
d) Poly-atomic

Answer 40

Diatomic

Question 41

What is the Atomicity of Nitrogen?

a) Monoatomic
b) Diatomic
c) Tetra-atomic
d) Poly-atomic

Answer 41

Diatomic

Question 42

What is the Atomicity of Hydrogen?

a) Monoatomic
b) Diatomic
c) Tetra-atomic
d) Poly-atomic

Answer 42

Diatomic

Question 43

What is the Atomicity of Chlorine?

a) Monoatomic
b) Diatomic
c) Tetra-atomic
d) Poly-atomic

Answer 43

Diatomic

Question 44

What is the Atomicity of Phosphorous?

a) Monoatomic
b) Diatomic
c) Tetra-atomic
d) Poly-atomic

Answer 44

Tetra-atomic

Question 45

What is the Atomicity of Sulphur?

a) Monoatomic
b) Diatomic
c) Tetra-atomic
d) Poly-atomic

Answer 45

Poly-atomic

Question 46

Examples of Molecules of compounds.

Answer 46

Water (H O) , Ammonia ( NH ) , Carbon dioxide (CO )

² ³ ²

Question 47

Examples of Ionic compounds

Answer 47

Calcium oxide, Magnesium sulphide, Sodium chloride.

Question 48

Ratios of the following: -
a)Water (H O) (B) Ammonia ( NH ) (C) Carbon dioxide (CO )
² ³ ²

Answer 48

a) 1:8
B) 14:3
C) 3:8

Question 49

Ratios of the following: -

a) Calcium oxide
b) Magnesium sulphide,
c) Sodium chloride.

Answer 49

a) 5:2
b) 3:4
c) 23:35.5