The molten state of NaCl is also called as .................... . fused state1/30Strong odour in swimming pool is due to .................... . chlorine gas2/30Salt obtained from certain type of rock is called .................... . rock salt3/30Melting point of NaCl is .................... . 800°C4/30Select the odd one out: Na2SO4, K3PO4, MgBr2, HCl. HCLQuestion Explanation:HCl : Rest all are salts but HCl is an acid. 5/30Bleaching powder is .................... in colour. yellowish white6/30Bleaching powder is also called .................... . calcium oxychloride7/30NaHCO3 is also called as .................... . sodium bicarbonate8/30The .................... % aqueous solution of salt is called brine. 259/30Chlorine gas is a strong .................... agent. oxidizing10/30Select the odd one out: Soap, Toothpaste, Baking soda, Curd. CurdQuestion Explanation:Curd : It is acidic in nature while others are basic in nature. 11/30Which of the following is a non-metallic element essential for human bone formation? Phosphorus12/30The fixed number of molecules of water in alum is .................... . 2413/30Select the odd one out: Sodium sulphate, Barium chloride, Magnesium sulphate, Bleaching powder. Bleaching powderQuestion Explanation:All others are crystalline salt with water of crystallization while bleaching powder is not. 14/30Which gas is released during the process of photosynthesis? Oxygen15/30Substance used to make hard water soft is .................... . Na2 CO3 .10H2 O16/30Molecular formula for magnesium bromide is .................... . MgBr217/30The molecular formula for baking soda is .................... . NaHCO318/30Soap is .................... in nature. basic19/30Select the odd one out: Na2CO3.10H2O, Na2SO4.10H2O, BaCl2.2H2O, CaOCl2 CaOCl2Question Explanation:CaOCl2 : It is amorphous in nature while rest are crystalline in nature. 20/30Select the odd one out: Boron-10, Iodine – 131, Cobalt – 60, Iodine – 123. Iodine – 123Question Explanation:Iodine – 123 : It is used in hyperthyroidism while rest are used in treatment of brain tumour. 21/30What is the chemical name of common salt? Sodium chloride22/30What is the primary component of natural gas? Methane23/30Which substance is commonly used as a disinfectant in swimming pools? Bleaching powder24/30What is the chemical formula of baking soda? NaHCO₃25/30Select the odd one out: Strontium – 89, Strontium – 90, Radium – 223, Iodine – 123. Iodine – 123Question Explanation:Iodine – 123 : It is used to cure hyperthyroidism while others are used to cure bone cancer 26/30During electrolysis of NaCl in the fused state .................... is formed at cathode. sodium27/30Rock salt is .................... in colour. brown28/30Baking soda is basic29/30.................... is known as chloride of lime. Bleaching powder30/30PrevNext Class 9 | Substances in Common Use 1 / 30 Which of the following is a non-metallic element essential for human bone formation? Calcium Phosphorus Iron Sodium 2 / 30 Bleaching powder is ……………….. in colour. yellowish white brownish red greenish blue pinkish brown 3 / 30 The molten state of NaCl is also called as ……………….. . fused state gaseous state solid state semi-solid 4 / 30 Select the odd one out: Sodium sulphate, Barium chloride, Magnesium sulphate, Bleaching powder. Barium chloride Magnesium sulphate Sodium sulphate Bleaching powder All others are crystalline salt with water of crystallization while bleaching powder is not. 5 / 30 Baking soda is acidic non-metallic basic metallic 6 / 30 Select the odd one out: Na2CO3.10H2O, Na2SO4.10H2O, BaCl2.2H2O, CaOCl2 CaOCl2 Na2 SO4 .10H2 O Na2 SO4 .10H2 O Na2 CO3 .10H2 O CaOCl2 : It is amorphous in nature while rest are crystalline in nature. 7 / 30 Select the odd one out: Boron-10, Iodine – 131, Cobalt – 60, Iodine – 123. Iodine – 131 Cobalt – 60 Boron-10 Iodine – 123 Iodine – 123 : It is used in hyperthyroidism while rest are used in treatment of brain tumour. 8 / 30 Strong odour in swimming pool is due to ……………….. . chlorine gas calcium hydroxide impurities calcium carbonate 9 / 30 Rock salt is ……………….. in colour. brown white blue black 10 / 30 Molecular formula for magnesium bromide is ……………….. . MgBr Mg2 Br MgBr2 Mg2 Br2 11 / 30 Bleaching powder is also called ……………….. . calcium oxalate calcium hydroxide calcium oxychloride calcium oxygen chlorine 12 / 30 Select the odd one out: Strontium – 89, Strontium – 90, Radium – 223, Iodine – 123. Iodine – 123 Strontium – 90 Strontium – 89 Radium – 223 Iodine – 123 : It is used to cure hyperthyroidism while others are used to cure bone cancer 13 / 30 During electrolysis of NaCl in the fused state ……………….. is formed at cathode. oxalic acid butyric acid oxygen sodium 14 / 30 Select the odd one out: Na2SO4, K3PO4, MgBr2, HCl. Na2 SO4 K3 PO4 MgBr2 HCL HCl : Rest all are salts but HCl is an acid. 15 / 30 Which substance is commonly used as a disinfectant in swimming pools? Vinegar Baking soda Bleaching powder Hydrogen peroxide 16 / 30 Soap is ……………….. in nature. acidic basic fuming neutral 17 / 30 What is the chemical name of common salt? Magnesium sulfate Calcium carbonate Sodium chloride Potassium nitrate 18 / 30 Chlorine gas is a strong ……………….. agent. acidic reducing oxidizing neutral 19 / 30 What is the chemical formula of baking soda? NaCl NaHCO₃ CH₄ H₂SO₄ 20 / 30 The fixed number of molecules of water in alum is ……………….. . 7 10 24 2 21 / 30 What is the primary component of natural gas? Ethane Methane Butane Propane 22 / 30 Which gas is released during the process of photosynthesis? Oxygen Nitrogen Carbon dioxide Hydrogen 23 / 30 Salt obtained from certain type of rock is called ……………….. . hard salt stone salt rock salt pure salt 24 / 30 NaHCO3 is also called as ……………….. . sodium carbonate sodium bicarbonate sodium chloride sodium carbon oxide 25 / 30 The molecular formula for baking soda is ……………….. . Na2 SO4 NaNO3 Na2 CO3 NaHCO3 26 / 30 ……………….. is known as chloride of lime. Sodium chloride Sodium bicarbonate Bleaching powder Calcium carbonate 27 / 30 Melting point of NaCl is ……………….. . 800°C 600°C 100°C 400°C 28 / 30 The ……………….. % aqueous solution of salt is called brine. 30 60 25 50 29 / 30 Substance used to make hard water soft is ……………….. . NaCO3 .10H2 O Na2 CO3 .10H2 O NaCO3 .H2 O Na2 CO3 .H2 O 30 / 30 Select the odd one out: Soap, Toothpaste, Baking soda, Curd. Curd Baking soda Soap Toothpaste Curd : It is acidic in nature while others are basic in nature. Your score is The average score is 72% 0% Restart quiz
Class 9 | Reflection Of Light Class 9 | Maharashtra Board | Quiz + Flash Cards, Quiz + Flashcards / By Shubham Jha
Class 9 | Study of Sound 1 Comment / Class 9 | Maharashtra Board | Quiz + Flash Cards, Quiz + Flashcards / By Shubham Jha