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Is magnesium being oxidised or reduced in this reaction? 3 years ago Deepak Rock class 10 ncert chemical reactions equations Identify the substances that are oxidised and the substances that are reduced in the following reactions: 3 years ago Deepak Rock class 10 ncert chemical reactions equations Give one example of the double displacement reaction. 3 years ago Deepak Rock class 10 ncert chemical reactions equations Why does the colour of copper sulphate change when an iron nail is dipped in it? 3 years ago Deepak Rock class 10 ncert chemical reactions equations When you mix solutions of lead (II) nitrate and potassium iodide. (a) What is the colour of the precipitate formed? Name the compound involved. (b) Write a balanced chemical equation for the reaction. 3 years ago Deepak Rock class 10 ncert chemical reactions equations Why is the amount of gas collected in one of the test tubes in Activity 7 double of the amount collected in the other? Name the gas. 3 years ago Deepak Rock class 10 ncert chemical reactions equations A solution of the substance ‘X’ is used for whitewashing. (a) Name the substance ‘X’ and write its formula. (b) Write the reaction of the substance ‘X’ with water. 3 years ago Deepak Rock class 10 ncert chemical reactions equations Write the balanced equations with state symbols for the following reactions: (a) Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride. 3 years ago Deepak Rock class 10 ncert chemical reactions equations Write the balanced equations for the following chemical reactions: (a) Hydrogen + Chlorine ➝ Hydrogen chloride 3 years ago Deepak Rock class 10 ncert chemical reactions equations Why should magnesium ribbon be cleaned before burning in air? 3 years ago Deepak Rock class 10 ncert chemical reactions equations A metal salt MX when exposed to light splits up to form metal M and a gas X2. Metal M is used in making ornaments whereas gas X2 is used in making bleaching powder. 3 years ago Deepak Rock class 10 chemical reactions equations lakhmir singh When a strip of red-brown metal X is placed in a colourless salt solution YNO3 then metal Y is set free and a blue coloured salt solution X(NO3)2 is formed. 3 years ago Deepak Rock class 10 chemical reactions equations lakhmir singh A red-brown metal X forms a salt XSO4. When hydrogen sulphide gas is passed through an aqueous solution of XSO4, then a black precipitate of XS is formed along with sulphuric acid solution. 3 years ago Deepak Rock class 10 chemical reactions equations lakhmir singh Two metals X and Y form the salts XSO4 and Y2SO4, respectively. The solution of salt XSO4 is blue in colour whereas that of Y2SO4 is colourless. 3 years ago Deepak Rock class 10 chemical reactions equations lakhmir singh A metal X forms a water soluble salt XNO3. When an aqueous solution of XNO3 is added to common salt solution, then a white precipitate of compound Y is formed along with sodium nitrate solution. 3 years ago Deepak Rock class 10 chemical reactions equations lakhmir singh When a black metal compound XO is heated with a colourless gas Y2, then metal X and another compound Y2O are formed. Metal X is red-brown in colour which does not react with dilute acids at all. 3 years ago Deepak Rock class 10 chemical reactions equations lakhmir singh A strip of metal X is dipped in a blue coloured salt solution YSO4. After some time, a layer of metal Y from the salt solution is formed on the surface of metal strip X. 3 years ago Deepak Rock class 10 chemical reactions equations lakhmir singh When hydrogen burns in oxygen, water is formed and when water is electrolysed, then hydrogen and oxygen are produced. What type of reaction takes place: (a) in the first case? (b) in the second case? 3 years ago Deepak Rock class 10 chemical reactions equations lakhmir singh A colourless lead salt, when heated, produces a yellow residue and brown fumes. 3 years ago Deepak Rock class 10 chemical reactions equations lakhmir singh When a green iron salt is heated strongly, its colour finally changes to brown and odour of burning sulphur is given out. (a) Name the iron salt. (b) Name the type of reaction that takes place during the heating of iron salt. 3 years ago Deepak Rock class 10 chemical reactions equations lakhmir singh Page 2 / 5 Prev 1 2 3 4 5 Next Share: Super Globals Requests: Server: Options and Features route: community use_home_url: url: https://eanshub.com/community/ pageid:187 default_groupid: 3 2022 How Can We Help? Δ Home About Us Contact Us Privacy Policy Term of Use Copyright © 2020 Eanshub All Rights Reserved
