Students learn to define and identify organic compounds. Chemical Reactions: Writing Molecular Formulas and an Introduction to Organic Molecules: Students learn to define and identify organic ...

For example, the formula H 2 O shows that a water molecule contains two hydrogen atoms and one oxygen atom.

The chemical formula of a covalent molecular substance gives the number of atoms per molecule. The formula of a covalent network or ionic compound gives the simplest ratio of atoms/ions in the ...

Some chemical formulas, like H2O (a.k.a. water), are almost as familiar to us as the words themselves. But why do we write them the way we do? The answer goes back to ...

Important Chemistry Reactions for Class 12: CBSE Class 12 students can refer to this list of key organic chemistry reactions to aid their preparation. It includes essential reactions like addition, ...

Section A covers Biology, with 16 questions carrying 30 marks. Section B covers Chemistry, with 13 questions carrying 25 marks.