Chemistry Full Forms List for Class 11 and 12 Students

Common Chemistry Terms and Full Forms

AbbreviationFull Form
STPStandard Temperature and Pressure
NTPNormal Temperature and Pressure
RTPRoom Temperature and Pressure
SATPStandard Ambient Temperature and Pressure
MMolarity
mMolality
NNormality
ppmParts Per Million
ppbParts Per Billion
molMole
amuAtomic Mass Unit
IUPACInternational Union of Pure and Applied Chemistry
SIInternational System of Units
pHPotential of Hydrogen
pOHPotential of Hydroxide
KspSolubility Product Constant
KaAcid Dissociation Constant
KbBase Dissociation Constant
KwIonic Product of Water
ΔHChange in Enthalpy
ΔSChange in Entropy
ΔGChange in Gibbs Free Energy
EaActivation Energy
RUniversal Gas Constant
PVPressure × Volume

Common Acids and Bases

FormulaFull Name
HClHydrochloric Acid
H₂SO₄Sulfuric Acid
HNO₃Nitric Acid
H₃PO₄Phosphoric Acid
CH₃COOHAcetic Acid
HFHydrofluoric Acid
H₂CO₃Carbonic Acid
HCNHydrocyanic Acid
NaOHSodium Hydroxide
KOHPotassium Hydroxide
Ca(OH)₂Calcium Hydroxide
NH₄OHAmmonium Hydroxide

Common Chemical Compounds

FormulaFull Name
H₂OWater
NH₃Ammonia
CO₂Carbon Dioxide
COCarbon Monoxide
SO₂Sulfur Dioxide
SO₃Sulfur Trioxide
NONitric Oxide
NO₂Nitrogen Dioxide
N₂ONitrous Oxide
CH₄Methane
C₂H₅OHEthanol
C₆H₁₂O₆Glucose
NaClSodium Chloride
Na₂CO₃Sodium Carbonate
NaHCO₃Sodium Bicarbonate
KNO₃Potassium Nitrate
KMnO₄Potassium Permanganate
K₂Cr₂O₇Potassium Dichromate
CaCO₃Calcium Carbonate
CaOCalcium Oxide
MgSO₄Magnesium Sulfate

Organic Chemistry Terms

AbbreviationFull Form
IUPACInternational Union of Pure and Applied Chemistry
SN1Substitution Nucleophilic Unimolecular
SN2Substitution Nucleophilic Bimolecular
E1Elimination Unimolecular
E2Elimination Bimolecular
RCHOAldehyde Functional Group
RCOOHCarboxylic Acid Functional Group
ROR’Ether Functional Group
ROHAlcohol Functional Group

Electrochemistry Terms

AbbreviationFull Form
EMFElectromotive Force
SHEStandard Hydrogen Electrode
Standard Electrode Potential
ECGElectrochemical Cell
AnodeOxidation Electrode
CathodeReduction Electrode

Environmental Chemistry Terms

AbbreviationFull Form
BODBiochemical Oxygen Demand
CODChemical Oxygen Demand
CFCChlorofluorocarbon
VOCVolatile Organic Compound
GHGGreenhouse Gas

Industrial Chemistry Terms

AbbreviationFull Form
LPGLiquefied Petroleum Gas
CNGCompressed Natural Gas
PNGPiped Natural Gas
LNGLiquefied Natural Gas
PVCPolyvinyl Chloride
PETPolyethylene Terephthalate
HDPEHigh-Density Polyethylene
LDPELow-Density Polyethylene

Gas Laws and Physical Chemistry

AbbreviationFull Form
KMTKinetic Molecular Theory
RMSRoot Mean Square
RMMRelative Molecular Mass
RAMRelative Atomic Mass
VBTValence Bond Theory
MOTMolecular Orbital Theory
VSEPRValence Shell Electron Pair Repulsion
CFTCrystal Field Theory
LCAOLinear Combination of Atomic Orbitals

Important Full Forms for Board Exams

  • STP – Standard Temperature and Pressure
  • NTP – Normal Temperature and Pressure
  • IUPAC – International Union of Pure and Applied Chemistry
  • pH – Potential of Hydrogen
  • EMF – Electromotive Force
  • SHE – Standard Hydrogen Electrode
  • LPG – Liquefied Petroleum Gas
  • CNG – Compressed Natural Gas
  • PVC – Polyvinyl Chloride
  • PET – Polyethylene Terephthalate
  • VSEPR – Valence Shell Electron Pair Repulsion
  • VBT – Valence Bond Theory
  • MOT – Molecular Orbital Theory
  • Ksp – Solubility Product Constant
  • BOD – Biochemical Oxygen Demand
  • COD – Chemical Oxygen Demand