Chemistry - Acids and Bases and Salts

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81. While preparing CO2 in laboratory, on which of the following substances hydrochloric acid is poured? (NTSE Gujarat, Stage-I, 2015-16)

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82. A solution reacts with crushed egg shells to give a gas that turns lime water milky. The solution contains (NTSE Jharkhand, Stage-I, 2016-17)

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83. The pH of a solution of HCI is 4 shows that the molarity of the solution is (NTSE Jharkhand, Stage-I, 2016-17)

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84. The pH value of Gastric juice, Lemon juice, Milk of magnesia, Sodium hydroxide solution respectively (NTSE Karnataka, Stage-I, 2014-15)

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85. Identify the wrong statement (NTSE Karnataka, Stage-I, 2015-16)

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