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Carbon Dioxide

Class 10 Science के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ScienceWhich insoluble substance first forms when carbon dioxide is passed through lime water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceBaking powder does not react strongly when dry but gives gas in moist dough. What is the main reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceWhich two factors can reduce the quality of sodium hydroxide when it is kept in open air?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceA gas first turns lime water milky and removes the milkiness when passed in excess. Which soluble substance forms in excess?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceA student says carbon dioxide is only a gas, so it has no relation with acids and bases. What is the correct correction?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceCarbon dioxide is passed into a solution. Milkiness appears first and then disappears. Which substance causes the initial milkiness?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhy are baking soda and an edible acid both kept in baking powder?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhy can sodium hydroxide pellets become wet and then less pure in open air?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Hard ScienceAn acid is added to a white solid and a gas evolves that turns lime water milky. Excess of the same gas removes the milkiness. What is the final soluble substance?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Hard ScienceA sample gives a gas that turns lime water milky. On passing excess gas, the milkiness disappears. Which two calcium compounds form in order?Class 10Chemical Substances – Nature and BehaviourCarbon and its CompoundsLevel 10Hard ScienceAdding sodium carbonate to a solution gives no gas, but adding acid to sodium carbonate gives gas. What does this indicate?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceThe gas released on heating baking soda turns lime water milky. What is the identity of the gas?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceSodium hydroxide kept in open air can be affected not only by moisture but also by carbon dioxide. Which substance can form?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceA student says carbon dioxide is not an acid, so it cannot react with a base. What is the correct evaluation?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceA sample gives carbon dioxide with acid and its aqueous solution turns red litmus blue. Which substance is most likely?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceIn an experiment both hydrogen gas and carbon dioxide gas may form. What are the correct tests to identify them?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 9Medium ScienceConsidering carbon dioxide as a non-metal oxide, why does it react with lime water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceAn unknown solid reacts with acid to give a gas that turns limewater milky. Which ion may be present in the solid?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Hard ScienceWhy does food become spongy when baking soda and an acid are mixed?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceA gas released from a carbonate sample with acid is passed into lime water for a long time. Why can the final solution become clear again?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Hard