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Subjects

Science

Metals and Non-metals

धातु और अधातु

In this Class 10 Science topic from “Chemical Substances – Nature and Behaviour,” students explore how metals and non-metals differ in their physical and chemical properties. They learn about reactions with oxygen, water, acids and bases, the reactivity series, formation and properties of ionic compounds, and the basic principles of extracting metals from ores. The topic also explains corrosion, its prevention, and the everyday uses of metals and non-metals, helping students connect chemical behaviour with familiar materials and processes.

Practice questions

Metal A displaces metal B from a solution of its salt, and metal B displaces metal C from a solution of its salt. Which metal is the least reactive?MediumLevel 4Copper deposits on an iron nail placed in copper sulphate solution. This observation is based on which principle?MediumLevel 4In galvanisation, the zinc layer protects iron from contact with which substances?MediumLevel 4In which situation is hydrogen gas most likely to be formed?MediumLevel 6Which statement correctly describes the general nature of metal oxides and non-metal oxides?MediumLevel 7Why is gas not released every time a metal is added to an acidic solution?HardLevel 11Why is the aqueous solution of non-metal oxides often acidic?MediumLevel 14What is the correct reason for avoiding storage of curd in a copper vessel?MediumLevel 14What is the general nature of metal oxides?MediumLevel 14What is the general nature of metal oxides?EasyLevel 13Which gas is produced at the anode in the chlor-alkali process?MediumLevel 6What is the general nature of metal oxides?EasyLevel 14What is the general nature of non-metal oxides?EasyLevel 14What is the general nature of metal oxides?EasyLevel 15A metal gives a gas with acid and the gas gives a pop sound near a burning splint. Which conclusion about the metal is correct?MediumLevel 14Why does copper generally not give hydrogen gas with dilute acids?MediumLevel 14If reabsorption in nephrons becomes very low, what may happen to urine volume?MediumLevel 22