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Class 10 · Science · Medium
→Which products are likely to form when sodium carbonate reacts with dilute acid?
Class 10 · Science · Medium
→How is the gas formed in the reaction of an acid and metal carbonate identified?
Class 10 · Science · Medium
→In the general reaction of an acid and a metal, what forms along with salt?
Class 10 · Science · Medium
→What is the correct identification of the gas formed when zinc reacts with dilute hydrochloric acid?
Class 10 · Science · Medium
→The slow addition of acid to water is related to which energy change?
Class 10 · Science · Medium
→Why can adding water to acid be dangerous while diluting acid?
Class 10 · Science · Medium
→What is the role of hydroxide ions in showing basic properties?
Class 10 · Science · Medium
→Why must an acid dissolve in water to show its acidic properties?
Class 10 · Science · Medium
→Why does dry hydrogen chloride gas not turn dry blue litmus paper red?
Class 10 · Science · Medium
→Onion smell remains in one solution and decreases in another. What is the usual nature of the solution in which the smell decreases?
Class 10 · Science · Medium
→A drop of a solution made turmeric paper reddish-brown. What is the nature of the solution?
Class 10 · Science · Medium
→Methyl orange became red in a solution. What is the correct conclusion about that solution?
Class 10 · Science · Medium
→A student added phenolphthalein to a solution, and it became pink. What is the nature of the solution?
Class 10 · Science · Medium
→Between solutions with pH 8 and pH 12, which one is more basic?
Class 10 · Science · Medium
→Between solutions with pH 2 and pH 5, which one is more acidic?
Class 10 · Science · Medium
→If a solution has pH 10, what effect will it have on red litmus paper?
Class 10 · Science · Medium
→If a solution has pH 3, what effect will it have on blue litmus paper?
Class 9 · General Knowledge · Easy
→What is the benefit if a student revises on time before an exam?
Class 10 · Science · Easy
→Which substance can be added to improve acidic soil?
Class 10 · Science · Easy
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