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Class 10 · Science · Easy
→What is used to prevent rancidity of fats and oils in food materials?
Class 10 · Science · Easy
→What is the process called when oils and fats develop an unpleasant smell on exposure to air?
Class 10 · Science · Easy
→What is mainly required for rusting?
Class 10 · Science · Easy
→What type of change is rusting of iron?
Class 10 · Science · Easy
→What is a reaction called in which oxidation and reduction occur simultaneously?
Class 10 · Science · Easy
→What is the simple meaning of reduction?
Class 10 · Science · Easy
→What is the simple meaning of oxidation?
Class 10 · Science · Easy
→Why is magnesium ribbon cleaned before burning?
Class 10 · Science · Easy
→Which substance is formed when magnesium ribbon is burnt in air?
Class 10 · Science · Easy
→What type of reaction is the burning of a fuel in the presence of oxygen?
Class 10 · Science · Easy
→What is a chemical reaction called in which heat is absorbed from the surroundings?
Class 10 · Science · Easy
→What is a chemical reaction that releases heat to the surroundings called?
Class 10 · Science · Easy
→Which white precipitate is formed when aqueous solutions of barium chloride and sodium sulphate are mixed?
Class 10 · Science · Easy
→What is the insoluble solid formed during a chemical reaction in a solution called?
Class 10 · Science · Easy
→When two ionic compounds exchange cations and anions to form two new compounds, what type of reaction is it called?
Class 10 · Science · Easy
→Which of the following reactions is an example of an exothermic reaction?
Class 10 · Science · Easy
→When an iron nail is placed in copper sulphate solution, which metal is deposited on the surface of the nail?
Class 10 · Science · Easy
→What is the reaction called when a more reactive metal displaces a less reactive metal from its compound?
Class 10 · Science · Easy
→What colour does silver chloride become when kept in sunlight?
Class 10 · Science · Easy
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