Select 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. 1/30The molten state of NaCl is also called as .................... . fused state2/30Select the odd one out: Na2SO4, K3PO4, MgBr2, HCl. HCLQuestion Explanation:HCl : Rest all are salts but HCl is an acid. 3/30The .................... % aqueous solution of salt is called brine. 254/30Baking soda is basic5/30During electrolysis of NaCl in the fused state .................... is formed at cathode. sodium6/30Salt obtained from certain type of rock is called .................... . rock salt7/30Select the odd one out: Soap, Toothpaste, Baking soda, Curd. CurdQuestion Explanation:Curd : It is acidic in nature while others are basic in nature. 8/30What is the chemical formula of baking soda? NaHCO₃9/30Chlorine gas is a strong .................... agent. oxidizing10/30.................... is known as chloride of lime. Bleaching powder11/30The molecular formula for baking soda is .................... . NaHCO312/30Bleaching powder is also called .................... . calcium oxychloride13/30Strong odour in swimming pool is due to .................... . chlorine gas14/30Select 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. 15/30Which substance is commonly used as a disinfectant in swimming pools? Bleaching powder16/30Molecular formula for magnesium bromide is .................... . MgBr217/30What is the primary component of natural gas? Methane18/30Soap is .................... in nature. basic19/30NaHCO3 is also called as .................... . sodium bicarbonate20/30The fixed number of molecules of water in alum is .................... . 2421/30Melting point of NaCl is .................... . 800°C22/30Which gas is released during the process of photosynthesis? Oxygen23/30Select 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. 24/30Substance used to make hard water soft is .................... . Na2 CO3 .10H2 O25/30Bleaching powder is .................... in colour. yellowish white26/30Rock salt is .................... in colour. brown27/30What is the chemical name of common salt? Sodium chloride28/30Which of the following is a non-metallic element essential for human bone formation? Phosphorus29/30Select 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 30/30PrevNext Class 9 | Substances in Common Use 1 / 30 NaHCO3 is also called as ……………….. . sodium chloride sodium carbon oxide sodium carbonate sodium bicarbonate 2 / 30 The molecular formula for baking soda is ……………….. . Na2 CO3 NaNO3 NaHCO3 Na2 SO4 3 / 30 Salt obtained from certain type of rock is called ……………….. . pure salt rock salt hard salt stone salt 4 / 30 The ……………….. % aqueous solution of salt is called brine. 30 25 60 50 5 / 30 Rock salt is ……………….. in colour. brown white blue black 6 / 30 What is the primary component of natural gas? Methane Ethane Butane Propane 7 / 30 The fixed number of molecules of water in alum is ……………….. . 10 24 7 2 8 / 30 Baking soda is metallic acidic basic non-metallic 9 / 30 During electrolysis of NaCl in the fused state ……………….. is formed at cathode. butyric acid oxalic acid sodium oxygen 10 / 30 Select the odd one out: Boron-10, Iodine – 131, Cobalt – 60, Iodine – 123. Iodine – 123 Boron-10 Iodine – 131 Cobalt – 60 Iodine – 123 : It is used in hyperthyroidism while rest are used in treatment of brain tumour. 11 / 30 Which of the following is a non-metallic element essential for human bone formation? Iron Sodium Calcium Phosphorus 12 / 30 Chlorine gas is a strong ……………….. agent. neutral acidic reducing oxidizing 13 / 30 ……………….. is known as chloride of lime. Sodium chloride Calcium carbonate Bleaching powder Sodium bicarbonate 14 / 30 Which gas is released during the process of photosynthesis? Hydrogen Oxygen Carbon dioxide Nitrogen 15 / 30 Bleaching powder is ……………….. in colour. yellowish white greenish blue brownish red pinkish brown 16 / 30 Strong odour in swimming pool is due to ……………….. . calcium hydroxide calcium carbonate chlorine gas impurities 17 / 30 Select the odd one out: Na2CO3.10H2O, Na2SO4.10H2O, BaCl2.2H2O, CaOCl2 Na2 SO4 .10H2 O Na2 CO3 .10H2 O CaOCl2 Na2 SO4 .10H2 O CaOCl2 : It is amorphous in nature while rest are crystalline in nature. 18 / 30 What is the chemical formula of baking soda? NaCl CH₄ H₂SO₄ NaHCO₃ 19 / 30 Select the odd one out: Sodium sulphate, Barium chloride, Magnesium sulphate, Bleaching powder. Magnesium sulphate Barium chloride Sodium sulphate Bleaching powder All others are crystalline salt with water of crystallization while bleaching powder is not. 20 / 30 What is the chemical name of common salt? Potassium nitrate Calcium carbonate Magnesium sulfate Sodium chloride 21 / 30 Molecular formula for magnesium bromide is ……………….. . Mg2 Br2 MgBr2 MgBr Mg2 Br 22 / 30 Select the odd one out: Na2SO4, K3PO4, MgBr2, HCl. MgBr2 K3 PO4 Na2 SO4 HCL HCl : Rest all are salts but HCl is an acid. 23 / 30 Select the odd one out: Soap, Toothpaste, Baking soda, Curd. Toothpaste Soap Curd Baking soda Curd : It is acidic in nature while others are basic in nature. 24 / 30 Melting point of NaCl is ……………….. . 100°C 800°C 400°C 600°C 25 / 30 Soap is ……………….. in nature. acidic basic fuming neutral 26 / 30 Substance used to make hard water soft is ……………….. . NaCO3 .H2 O Na2 CO3 .H2 O NaCO3 .10H2 O Na2 CO3 .10H2 O 27 / 30 The molten state of NaCl is also called as ……………….. . solid state fused state gaseous state semi-solid 28 / 30 Bleaching powder is also called ……………….. . calcium oxygen chlorine calcium hydroxide calcium oxalate calcium oxychloride 29 / 30 Which substance is commonly used as a disinfectant in swimming pools? Vinegar Hydrogen peroxide Baking soda Bleaching powder 30 / 30 Select the odd one out: Strontium – 89, Strontium – 90, Radium – 223, Iodine – 123. Iodine – 123 Radium – 223 Strontium – 90 Strontium – 89 Iodine – 123 : It is used to cure hyperthyroidism while others are used to cure bone cancer 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