IIT JEE Test Series — Practice smarter, perform stronger.

General Chemistry formulas

Master General Chemistry through 14 JEE Advanced-level formulas, systematically structured with every variable spelled out. Revise concept-wise, identify the areas where you need improvement, and focus your preparation with greater precision.

Practise these formulas Know more about IIT JEE

Back to Formula Book

General Chemistry, every formula

14 formulas, typeset and free. Print it, or keep it open beside your practice.

Atomic number
$Z = number of protons$
Q1MCQAtomic number
The atomic number equals the number of:
- A
  protons
- B
  neutrons
- C
  electrons + neutrons
- D
  nucleons
Mass number
$A = protons + neutrons$
Q1MCQMass number
The mass number is the sum of:
- A
  protons and neutrons
- B
  protons and electrons
- C
  neutrons only
- D
  electrons only
Isotopes
$same Z, different A$
Q1MCQIsotopes
Isotopes have:
- A
  the same Z, different A
- B
  the same A, different Z
- C
  different Z and A
- D
  the same everything
Isobars
$same A, different Z$
Q1MCQIsobars
Isobars have:
- A
  the same A, different Z
- B
  the same Z
- C
  the same neutrons
- D
  the same electrons
Mole
$1 mol = 6.022 \times 1 0^{23} particles$
Q1MCQMole
One mole contains how many particles?
- A
  $6.022\times10^{23}$
- B
  $6.022\times10^{-23}$
- C
  $3.011\times10^{23}$
- D
  $10^{23}$
Molar mass
$M = \frac{mass}{moles}$
Empirical formula
$simplest whole-number ratio of atoms$
Q1MCQEmpirical formula
The empirical formula gives the:
- A
  simplest whole-number atom ratio
- B
  actual atom count
- C
  molar mass
- D
  density
Law of conservation of mass
$mass is conserved in a reaction$
Q1MCQConservation of mass
In a chemical reaction, the total mass is:
- A
  conserved
- B
  increased
- C
  decreased
- D
  zero
Law of multiple proportions
$fixed small whole-number mass ratios$
Q1MCQMultiple proportions
The law of multiple proportions involves:
- A
  small whole-number mass ratios
- B
  random ratios
- C
  equal masses
- D
  no ratio
Percentage composition
$% element = \frac{mass of element}{molar mass} \times 100$
Significant figures (multiplication)
$least number of sig figs$
Q1MCQSig figs
In multiplication, the answer keeps:
- A
  the least number of significant figures
- B
  the most sig figs
- C
  all digits
- D
  two decimals
Stoichiometry
$mole ratios from balanced equation$
Q1MCQStoichiometry
Stoichiometric ratios come from the:
- A
  balanced chemical equation
- B
  molar mass
- C
  density
- D
  temperature
Limiting reagent
$reactant that runs out first$
Q1MCQLimiting reagent
The limiting reagent is the reactant that:
- A
  is completely consumed first
- B
  is in excess
- C
  is a catalyst
- D
  is the solvent
Molarity
$M = \frac{moles}{volume (L)}$

More JEE Advanced Chemistry formula sheets

Every chapter sheet is typeset, free and open without a sign-in.

Other ways to revise this chapter

Master this chapter with similar other learning materials.

Preparing students for India’s top institutes

Our students are currently into top technological and medical institutes of India.

IIT Bombay
IIT Delhi
IIT Madras
IIT Kanpur
IIT Kharagpur
IIT Roorkee
IIT Guwahati
IIT BHU Varanasi
AIIMS Delhi
NIT Tiruchirappalli
NIT Rourkela
IIT Bombay
IIT Delhi
IIT Madras
IIT Kanpur
IIT Kharagpur
IIT Roorkee
IIT Guwahati
IIT BHU Varanasi
AIIMS Delhi
NIT Tiruchirappalli
NIT Rourkela

Join QuestPix, Today!

Get notified first, with exam & curriculum updates, course & test series launch offers, motivation & success stories and free learning resources recommended by toppers.

General Chemistry formulas

General Chemistry, every formula

Atomic number

Mass number

Isotopes

Isobars

Mole

Molar mass

Empirical formula

Law of conservation of mass

Law of multiple proportions

Percentage composition

Significant figures (multiplication)

Stoichiometry

Limiting reagent

Molarity

More JEE Advanced Chemistry formula sheets

Other ways to revise this chapter

Preparing students for India’s top institutes

Join QuestPix, Today!