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Pure Substances

Class 11 Chemistry के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ChemistryWhich is the correct list of pure substances?Class 11Some Basic Concepts of ChemistryNature of matterEasyChemistryWhat is the main similarity between an element and a compound?Class 11Some Basic Concepts of ChemistryNature of matterEasyChemistryWhich of the following substances is a mixture?Class 11Some Basic Concepts of ChemistryNature of matterEasyChemistryWhy is air from a natural source not considered a pure substance?Class 11Some Basic Concepts of ChemistryNature of matterEasyChemistryWhich option is the correct pair of pure substance and mixture?Class 11Some Basic Concepts of ChemistryNature of matterEasyChemistryWhich substance is chemically made of one kind of atoms?Class 11Some Basic Concepts of ChemistryNature of matterEasyChemistryPure substances can be divided into which two classes?Class 11Some Basic Concepts of ChemistryNature of matterEasyChemistryWater is an example of what?Class 11Some Basic Concepts of ChemistryNature of matterEasyChemistryWhat is the correct identification of a pure substance?Class 11Some Basic Concepts of ChemistryNature of matterEasyChemistryA student says that air is a pure substance because it is colourless. Which is the correct correction to this statement?Class 11Some Basic Concepts of ChemistryNature of matterEasyChemistryElement and compound both come under which category?Class 11Some Basic Concepts of ChemistryNature of matterEasyChemistryPresence of nitrogen and oxygen in air shows what?Class 11Some Basic Concepts of ChemistryNature of matterEasyChemistryWhich of the following is a pure substance and not a mixture?Class 11Some Basic Concepts of ChemistryNature of matterEasyChemistryWhich type of matter does not have fixed composition?Class 11Some Basic Concepts of ChemistryNature of matterEasyChemistryInto how many main types are pure substances classified?Class 11Some Basic Concepts of ChemistryNature of matterEasy

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