Search questions
Choose which content to search, then combine terms with AND or OR.
Class 10 · Science · Medium
→Between equal concentration solutions of vinegar acid and hydrochloric acid, which can produce more ions?
Class 10 · Science · Medium
→The difference between a strong acid and a weak acid is mainly based on what?
Class 10 · Science · Medium
→Which statement about dilute acid and concentrated acid is correct?
Class 10 · Science · Easy
→Which substance increases the amount of hydroxide ions when dissolved in water?
Class 10 · Science · Medium
→Which salt is formed when calcium hydroxide reacts with hydrochloric acid?
Class 10 · Science · Medium
→Which salt is formed by complete neutralisation of sodium hydroxide and sulphuric acid?
Class 10 · Science · Medium
→Why does copper generally not produce hydrogen gas with dilute hydrochloric acid?
Class 10 · Science · Medium
→A gas released in the reaction of a metal with an acid gives a pop sound near a burning splint. Which gas is it?
Class 10 · Science · Medium
→In which reaction is a gas most likely to form that turns lime water milky?
Class 10 · Science · Easy
→A solution turns red litmus blue and gives pink colour with phenolphthalein. What is the nature of the solution?
Class 10 · Science · Easy
→An unknown solution turns blue litmus red and remains colourless with phenolphthalein. Which conclusion is correct?
Class 10 · Science · Medium
→Four solutions have pH values 5, 7, 9 and 11. Which acidic solution among them is least harmful to teeth?
Class 10 · Science · Medium
→A basic solution has pH 12. What happens to its pH when water is added?
Class 10 · Science · Medium
→A solution has pH 4. When water is added to the same solution, in which direction is its pH likely to change?
Class 10 · Science · Medium
→If a small amount of base is dissolved in water, in which direction will the pH of the solution move?
Class 10 · Science · Medium
→When a small amount of acid is mixed with water, the amount of which ion increases in the solution?
Class 10 · Science · Easy
→A solution turns blue litmus red and releases gas with a metal carbonate. What type of solution is it?
Class 10 · Science · Easy
→What colour does methyl orange generally show in a basic solution?
Class 10 · Science · Medium
→If phenolphthalein remains colourless in a solution, which conclusion is the most careful one?
Class 10 · Science · Medium
→