Introduces the laws of chemical combination, mole concept, and writing chemical formulas.

Unlike standard textbooks, the Modern ABC series includes specialized sections to enhance critical thinking and competitive readiness.

Differentiating between homogeneous and heterogeneous mixtures.

: Practice drawing Rutherford’s alpha-particle scattering experiment or Bohr's atomic models to score full marks on subjective questions.

Every concept is followed by step-by-step solved problems, which is particularly helpful for numerical topics like the mole concept.

If you prefer a physical copy, you can find the latest editions on major retail sites:

Study tips

Explains distribution of electrons in different orbits (Bohr-Bury scheme).

Create a dedicated cheat sheet for conversions:

Modern ABC Plus of Science Chemistry for Class 9 Dr. S.P. Jauhar

Let’s address the elephant in the room. Why are students searching for the PDF?

This is the most mathematically intensive and foundational chapter in 9th-grade chemistry.

Explores the physical nature of matter, states of matter (solid, liquid, gas), and the effect of temperature and pressure on state changes.