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Class 10 · Science · Easy
→Which test is used to identify carbon dioxide gas?
Class 10 · Science · Easy
→Which gas is formed when an acid reacts with a carbonate?
Class 10 · Science · Easy
→Which test is used to identify hydrogen gas?
Class 10 · Science · Easy
→Which gas is generally released when an acid reacts with an active metal?
Class 10 · Science · Easy
→A solution has pH 11. What will be its nature?
Class 10 · Science · Easy
→A solution has pH 3. What will be its nature?
Class 10 · Science · Easy
→If a solution has pH 7, what will be its nature?
Class 10 · Science · Easy
→What is the nature of a solution that turns red litmus paper blue?
Class 10 · Science · Easy
→What is the nature of a solution that turns blue litmus paper red?
Class 10 · Science · Medium
→Why can it be wrong to decide whether a colourless solution is an acid or a base just by looking at it?
Class 10 · Science · Hard
→Why does an acidic solution not immediately become basic even after adding a lot of water?
Class 10 · Science · Medium
→For making bleaching powder, chlorine gas is passed over which substance?
Class 10 · Science · Medium
→A substance forms salt and water with acid but remains insoluble in water. What will it be called?
Class 10 · Science · Medium
→When sodium hydroxide is added to an acidic solution, which ions combine to form water during neutralisation?
Class 10 · Science · Medium
→A student says carbonates give hydrogen gas with acids. What is the correct correction?
Class 10 · Science · Medium
→A solution giving violet colour with universal indicator becomes blue when acid is added. What does this correctly mean?
Class 10 · Science · Medium
→Why should curd not be stored in a copper vessel?
Class 10 · Science · Medium
→Why can aqueous solutions of non-metal oxides often turn blue litmus red?
Class 10 · Science · Medium
→Why are metal oxides generally called basic?
Class 10 · Science · Easy
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