cbsenotes • 2022-02-12
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
cbsenotes • 2022-01-06
CBSE Class 9 - Physics - Work (Questions and Answers)Q1: 2 Newton-metre is how many joules?Answer: ∵ 1 Nm = 1J ∴ 2Nm = 2JQ2: In the CGS system- what is the unit for Work?Answer: ergQ3: Is work sca
cbsenotes • 2021-10-12
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
cbsenotes • 2021-08-30
CBSE Class 9 Biology - Cell: The Fundamental Unit of Life (MCQs)Image Credits: Animal Cell By OpenStax- wikimediaChoose the correct option from the MCQs given:Q1: Which structure in plant cell is resp
cbsenotes • 2021-03-30
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