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Class 10 · Science · Easy
→Which salt is commonly used to remove permanent hardness of water?
Class 10 · Science · Easy
→Bleaching powder is mainly used for what purpose?
Class 10 · Science · Easy
→A student says that an antacid relieves indigestion by increasing the amount of acid in the stomach. What is the correct correction to this statement?
Class 10 · Science · Easy
→A student dilutes concentrated sulphuric acid by adding water to a beaker containing acid. What correction should be made to prevent an accident?
Class 10 · Science · Easy
→A student says that distilled water is a good conductor of electricity because it contains H⁺ and OH⁻ ions. What is the correct correction to this statement?
Class 10 · Science · Easy
→Hydrochloric acid is what type of acid?
Class 10 · Science · Easy
→Which of the following salts is an example of a neutral salt?
Class 10 · Science · Easy
→What type of process is mixing acid with water?
Class 10 · Science · Easy
→What care should be taken while mixing acid with water?
Class 10 · Science · Medium
→Why does dry hydrogen chloride gas show no effect on dry blue litmus?
Class 10 · Science · Easy
→Why is dissolving acids in water considered necessary?
Class 10 · Science · Easy
→Which of the following substances acts as an olfactory indicator?
Class 10 · Science · Medium
→Which of the following salts gives an approximately neutral solution in water?
Class 10 · Science · Easy
→Toothpaste is generally of which nature?
Class 10 · Science · Easy
→When can tooth decay start in the mouth?
Class 10 · Science · Easy
→Milk of magnesia is useful for what purpose?
Class 10 · Science · Easy
→Which substance is used to get relief from excess acidity?
Class 10 · Science · Easy
→After testing soil and finding it acidic, a student recommends adding lime to it. What is the main reason for this recommendation?
Class 10 · Science · Easy
→What kind of pH value does the most basic solution have?
Class 10 · Science · Easy
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