CBSE Class 9 - Chemistry - Atoms and Molecules - Very Short Answer Based Questions - AnswersQ1. What is the chemical symbol of lead and mercury?Q2. Monika finds that all samples of pure water ha
Class 9 - Chemistry - Formulae of Simple Compounds - Atoms and MoleculesQ1: What is a chemical formula?Answer: The chemical formula of a compound is a symbolic representation of its composition.Q2: Wr
Class IX Science Term 1 MCQs (2021-22)Q1. Rusting of an article made up of iron is called(a) corrosion and it is a physical as well as chemical change(b) dissolution and it is a physical change(c) cor
CBSE Class 9 - Chemistry - Matter in Our Surroundings - 1 Mark Questions and Answers Q1: What are the conditions for 'something' to be called 'matter'?Answer: The main conditions for something to
Chapter: Atoms and Molecules (Important Definitions)CBSE Class 9 - Chemistry1. Law of Conservation of Mass: Mass can neither be created nor can it be destroyed in a chemical reaction. In a chemic
