Class 10 Chemistry - Essential Chemical Formulas


 Chemical Formulas    


1

Acetic Acid (Vinegar)

CH₃COOH

2

Aluminium chloride

AlCl3

3

Aluminium hydroxide

Al(OH)3

4

Aluminium oxide (Alumina)

Al2O3

5

Aluminium sulphate

Al2(SO4)3

6

Ammonia

NH₃

7

Ammonium Chloride

NH₄Cl

8

Ammonium hydroxide

NH4OH

9

Ammonium Nitrate

NH₄NO₃

10

Barium chloride

BaCl2

11

Barium Sulphate

BaSO4

12

Calcium carbonate (Limestone / Marble / Chalk)

CaCO₃

13

Calcium chloride

CaCl2

14

Calcium hydride

CaH2

15

Calcium hydrogen carbonate

Ca(HCO3)2

16

Calcium hydroxide (Slaked Lime)

Ca(OH)₂

17

Calcium nitrate

Ca(NO3)2

18

Calcium oxide (Quick Lime)

CaO

19

Calcium oxychloride (Bleaching Powder)

CaOCl2

20

Calcium sulphate

CaSO₄

21

Carbon dioxide

CO₂

22

Carbon disulphide

CS2

23

Carbonic acid

H2CO3

24

Carbon monoxide

CO

25

Copper chloride

CuCl2

26

Copper hydroxide

Cu(OH)2

27

Copper nitrate

Cu(NO3)2

28

Copper oxide

CuO

29

Copper sulphate (Blue Vitriol)

CuSO₄.5H2O

30

Copper sulphide

CuS

31

Ethane

C₂H₆

32

Ethanol

C₂H₅OH

33

Ethene

C₂H₄

34

Glucose

C₆H₁₂O₆

35

Gypsum

CaSO4.2H2O

36

Hydrochloric acid

HCl

37

Hydrogen bromide

HBr

38

Hydrogen iodide

HI

39

Hydrogen peroxide

H₂O₂

40

Hydrogen sulphide

H2S

41

Hydrated iron (III) oxide (Rust)

Fe2O3.xH2O

42

Iron chloride (Ferric chloride)

FeCl3

43

Iron (II) oxide (Ferrous oxide)

FeO

44

Iron (III) oxide (Ferric oxide)

Fe2O3

45

Iron (II, III) oxide

Fe3O4

46

Iron sulphide

FeS

47

Lead chloride

PbCl2

48

Lead iodide

PbI2

49

Lead nitrate

Pb(NO3)2

50

Lead oxide

PbO

51

Magnesium carbonate

MgCO3

52

Magnesium chloride

 MgCl2

53

Magnesium hydroxide

Mg(OH)2

54

Magnesium nitrate

Mg(NO3)2

55

Magnesium oxide

MgO

56

Magnesium sulphate

MgSo4

57

Manganese chloride

MnCl2

58

Manganese nitrate

Mn(NO3)2

59

Manganese oxide

MnO2

60

Methane

CH₄

61

Methyl alcohol (Methanol)

CH₃OH

62

Methanoic acid (Formic acid)

HCOOH

63

Nitric acid

HNO₃

64

Nitrogen dioxide

NO₂

65

Nitrogen monoxide

NO

66

Phosphoric acid

H₃PO₄

67

Phosphorous trichloride

PCl­3

68

Phosphorous pentoxide

P2O5

69

Plaster of Paris

2CaSO4.H2O

70

Potassium chlorate

KClO3

71

Potassium chloride

KCl

72

Potassium dichromate

K2Cr2O7

73

Potassium hydroxide

KOH

74

Potassium iodide

KI

75

Potassium nitrate (Saltpetre)

KNO₃

76

Potassium sulphate

K2SO4

77

Sand

SiO2

78

Silver bromide

AgBr

79

Silver chloride

AgCl

80

Silver nitrate

AgNO3

81

Sodium acetate

CH3COONa

82

Sodium aluminate

NaAlO2

83

Sodium bicarbonate (Baking Soda)

NaHCO₃

84

Sodium carbonate (Soda Ash)

Na₂CO₃

85

Sodium carbonate decahydrate (Washing soda)

Na2CO3.10H2O

86

Sodium chloride (Table Salt)

NaCl

87

Sodium hydride

NaH

88

Sodium hydroxide (Caustic Soda)

NaOH

89

Sodium nitrate

NaNO3

90

Sodium oxide

Na2O

91

Sodium sulphate

Na2SO4

92

Sodium zincate

Na2ZnO2

93

Starch

[(C6H10O5)n]

94

Sugar/Cane Sugar

C12H22O11

95

Sulphur dioxide

SO₂

96

Sulphur trioxide

SO₃

97

Sulphuric acid

H₂SO₄

98

Sulphurous acid

H2SO3

99

Zinc chloride

ZnCl2

100

Zinc carbonate

ZnCO3

101

Zinc sulphate

ZnSO4

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