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Class 10 · Science
→Why does a dry acidic gas not change dry litmus?
Class 10 · Science
→Which of the following substances is used as an olfactory indicator?
Class 10 · Science
→A student added lime to acidic soil to improve the growth of plants. What is the main purpose of adding lime?
Class 10 · Science
→A student places red litmus paper in a solution, and it turns blue. What type of solution is it?
Class 10 · Science
→What will be the nature of a solution with pH nine?
Class 10 · Science
→What will be the nature of a solution with pH four?
Class 10 · Science
→As the pH value becomes higher, what happens to the basicity of a solution?
Class 10 · Science
→As the pH value becomes lower, what happens to the acidity of a solution?
Class 10 · Science
→Vanilla extract is what type of indicator?
Class 10 · Science
→Onion extract is considered what type of indicator?
Class 10 · Science
→What colour can turmeric paper show when soap solution is added to it?
Class 10 · Science
→Red litmus turns blue in a base. What does this identify?
Class 10 · Science
→Blue litmus turns red in acid. What does this identify?
Class 10 · Science
→What colour does phenolphthalein become in a basic solution?
Class 10 · Science
→Which method is safest for diluting concentrated sulphuric acid in a laboratory?
Class 10 · Science
→What colour does methyl orange become in a basic solution?
Class 10 · Science
→What happens to the colour of moist blue litmus paper when it is exposed to hydrogen chloride gas?
Class 10 · Science
→How can organic matter help improve basic soil?
Class 10 · Science
→Which of the following salts is known to form a neutral solution in water?
Class 10 · Science
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