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(b) Name the raw material used for the preparation of plaster of Paris. 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh State two uses each of the following compounds: (a) Sodium hydroxide (b) Chlorine (c) Hydrogen (d) Hydrochloric acid 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh What is “baking powder”? How does it make the cake soft and spongy? (b) In addition to sodium hydrogen carbonate, baking powders contain a substance X. Name the substance X. 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh What is gypsum? What happens when gypsum is heated to 100°C (373 K)? (b) Name a sodium compound which is used for making borax and glass. 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh Name a sodium compound used for softening hard water. (b) Which compound of calcium is used for disinfecting drinking water supply? 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh What does a soda-acid-type fire extinguisher contain? How does it work? Explain the working of a soda-acid fire extinguisher with the help of a labelled diagram. 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh What is the chemical name of bleaching powder? (b) What is the chemical formula of bleaching powder? 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh Name two constituents of baking powder. (b) How does baking powder differ from baking soda? (c) Explain the action of baking powder in the making of cake (or bread). Write equation of the reaction involved. 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh What happens when copper sulphate crystals are heated strongly? Explain with the help of an equation. (b) What happens when a few drops of water are added to anhydrous copper sulphate? Explain with the help of an equation. 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh What will happen if heating is not controlled while preparing plaster of Paris? (b) Write an equation to show the reaction between plaster of Paris and water. 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh What is the common name of sodium hydrogen carbonate? (b) What happens when a solution of sodium hydrogen carbonate is heated? Write equation of the reaction involved. 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh What is meant by “water of crystallisation” in a substance? Explain with an example. (b) How would you show that blue copper sulphate crystals contain water of crystallisation? 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh What happens when a cold and concentrated solution of sodium chloride reacts with ammonia and carbon dioxide? Write the chemical equation of the reaction which takes place. 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh Describe how sodium hydrogen carbonate (baking soda) is produced on a large scale. Write equation of the reaction involved. 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh What is baking soda? Write the chemical name of baking soda. Give the important uses of baking soda. How does baking soda differ chemically from washing soda? 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh Write the chemical formula of ammonium chloride. Explain why an aqueous solution of ammonium chloride is acidic in nature? Illustrate your answer with the help of a chemical equation. 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh Write the formulae of sodium chloride and sodium carbonate. Explain why an aqueous solution of sodium chloride is neutral but an aqueous solution of sodium carbonate is basic (or alkaline). 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh What is washing soda? State two properties and two uses of washing soda. 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh Complete and balance the following chemical equations: (a) NaCl(aq) + H2O(l) + Electricity → (b) NaHCO3 + Heat → (c) NaCl + NH3 + H2O + CO2 → 4 years ago Deepak Rock class 10 acids bases salts lakhmir singh Hydrochloric acid reacts with a metal X to form a gas Y which bums with a ‘pop’ sound. Sodium hydroxide solution also reacts with the same metal X (on heating) to form the same gas Y. 4 years ago Deepak Rock class 10 acids bases salts 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? 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