The molten state of NaCl is also called as .................... . fused state1/30Bleaching powder is .................... in colour. yellowish white2/30Select the odd one out: Na2SO4, K3PO4, MgBr2, HCl. HCLQuestion Explanation:HCl : Rest all are salts but HCl is an acid. 3/30Which gas is released during the process of photosynthesis? Oxygen4/30The fixed number of molecules of water in alum is .................... . 245/30Which of the following is a non-metallic element essential for human bone formation? Phosphorus6/30Strong odour in swimming pool is due to .................... . chlorine gas7/30The .................... % aqueous solution of salt is called brine. 258/30NaHCO3 is also called as .................... . sodium bicarbonate9/30Molecular formula for magnesium bromide is .................... . MgBr210/30Baking soda is basic11/30The molecular formula for baking soda is .................... . NaHCO312/30Select 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. 13/30Select 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. 14/30Select 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. 15/30Melting point of NaCl is .................... . 800°C16/30Select the odd one out: Soap, Toothpaste, Baking soda, Curd. CurdQuestion Explanation:Curd : It is acidic in nature while others are basic in nature. 17/30During electrolysis of NaCl in the fused state .................... is formed at cathode. sodium18/30Soap is .................... in nature. basic19/30What is the primary component of natural gas? Methane20/30Which substance is commonly used as a disinfectant in swimming pools? Bleaching powder21/30.................... is known as chloride of lime. Bleaching powder22/30Substance used to make hard water soft is .................... . Na2 CO3 .10H2 O23/30What is the chemical formula of baking soda? NaHCO₃24/30Select 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 25/30Salt obtained from certain type of rock is called .................... . rock salt26/30What is the chemical name of common salt? Sodium chloride27/30Chlorine gas is a strong .................... agent. oxidizing28/30Rock salt is .................... in colour. brown29/30Bleaching powder is also called .................... . calcium oxychloride30/30PrevNext Class 9 | Substances in Common Use 1 / 30 Rock salt is ……………….. in colour. black blue brown white 2 / 30 What is the primary component of natural gas? Ethane Propane Butane Methane 3 / 30 Select the odd one out: Soap, Toothpaste, Baking soda, Curd. Curd Soap Baking soda Toothpaste Curd : It is acidic in nature while others are basic in nature. 4 / 30 The molecular formula for baking soda is ……………….. . Na2 SO4 Na2 CO3 NaHCO3 NaNO3 5 / 30 Substance used to make hard water soft is ……………….. . NaCO3 .10H2 O Na2 CO3 .H2 O Na2 CO3 .10H2 O NaCO3 .H2 O 6 / 30 NaHCO3 is also called as ……………….. . sodium carbon oxide sodium bicarbonate sodium carbonate sodium chloride 7 / 30 Chlorine gas is a strong ……………….. agent. oxidizing neutral acidic reducing 8 / 30 The fixed number of molecules of water in alum is ……………….. . 10 2 7 24 9 / 30 Which gas is released during the process of photosynthesis? Carbon dioxide Nitrogen Hydrogen Oxygen 10 / 30 Select the odd one out: Na2CO3.10H2O, Na2SO4.10H2O, BaCl2.2H2O, CaOCl2 Na2 CO3 .10H2 O Na2 SO4 .10H2 O Na2 SO4 .10H2 O CaOCl2 CaOCl2 : It is amorphous in nature while rest are crystalline in nature. 11 / 30 The ……………….. % aqueous solution of salt is called brine. 25 30 60 50 12 / 30 Baking soda is non-metallic basic metallic acidic 13 / 30 Salt obtained from certain type of rock is called ……………….. . stone salt rock salt hard salt pure salt 14 / 30 Which of the following is a non-metallic element essential for human bone formation? Calcium Phosphorus Sodium Iron 15 / 30 Soap is ……………….. in nature. neutral fuming acidic basic 16 / 30 Strong odour in swimming pool is due to ……………….. . chlorine gas calcium carbonate impurities calcium hydroxide 17 / 30 Melting point of NaCl is ……………….. . 400°C 100°C 600°C 800°C 18 / 30 Select the odd one out: Boron-10, Iodine – 131, Cobalt – 60, Iodine – 123. Iodine – 123 Cobalt – 60 Iodine – 131 Boron-10 Iodine – 123 : It is used in hyperthyroidism while rest are used in treatment of brain tumour. 19 / 30 The molten state of NaCl is also called as ……………….. . gaseous state semi-solid solid state fused state 20 / 30 What is the chemical name of common salt? Sodium chloride Calcium carbonate Magnesium sulfate Potassium nitrate 21 / 30 Bleaching powder is ……………….. in colour. brownish red greenish blue pinkish brown yellowish white 22 / 30 What is the chemical formula of baking soda? CH₄ H₂SO₄ NaHCO₃ NaCl 23 / 30 Molecular formula for magnesium bromide is ……………….. . Mg2 Br2 MgBr2 Mg2 Br MgBr 24 / 30 Which substance is commonly used as a disinfectant in swimming pools? Vinegar Baking soda Hydrogen peroxide Bleaching powder 25 / 30 Select the odd one out: Sodium sulphate, Barium chloride, Magnesium sulphate, Bleaching powder. Barium chloride Magnesium sulphate Bleaching powder Sodium sulphate All others are crystalline salt with water of crystallization while bleaching powder is not. 26 / 30 Select the odd one out: Na2SO4, K3PO4, MgBr2, HCl. K3 PO4 HCL Na2 SO4 MgBr2 HCl : Rest all are salts but HCl is an acid. 27 / 30 ……………….. is known as chloride of lime. Sodium bicarbonate Bleaching powder Sodium chloride Calcium carbonate 28 / 30 Select the odd one out: Strontium – 89, Strontium – 90, Radium – 223, Iodine – 123. Strontium – 90 Strontium – 89 Iodine – 123 Radium – 223 Iodine – 123 : It is used to cure hyperthyroidism while others are used to cure bone cancer 29 / 30 During electrolysis of NaCl in the fused state ……………….. is formed at cathode. oxygen butyric acid sodium oxalic acid 30 / 30 Bleaching powder is also called ……………….. . calcium oxalate calcium oxychloride calcium hydroxide calcium oxygen chlorine Your score is The average score is 73% 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