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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।

ScienceA substance gives carbon dioxide with acid and its solution is basic. Which substance can it be?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 14MediumScienceWhich pair has the first substance as an acidic oxide and the second as a basic oxide?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13MediumScienceWhy is sodium hydrogen carbonate used to make food items rise during cooking?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13EasyScienceA white powder releases heat when mixed with water and forms a milky solution. Passing carbon dioxide through this solution gives a white precipitate. What can the powder be?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13HardScienceIf sodium hydroxide solution is left exposed to air, which substance may form over time?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13MediumScienceWhen excess carbon dioxide gas is passed through sodium hydroxide solution, what can finally be the main product?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13HardScienceWhy is it not suitable to leave sodium hydroxide open in air?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12MediumScienceAn unknown sample reacts with acid to give a gas that turns lime water milky. Which class could the sample belong to?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12MediumScienceIn which reaction can salt, water, and carbon dioxide all be formed?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12MediumScienceThe gas formed on strong heating of baking soda turns lime water milky. Which gas is it?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12MediumScienceWhy does effervescence occur when sodium hydrogen carbonate is mixed with an acid?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12EasyScienceAn acid reacts with a metal carbonate to give a gas. Why can the milkiness disappear when that gas is passed through lime water for a long time?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12HardScienceHow does carbon dioxide produced in a soda-acid fire extinguisher help put out fire?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11MediumScienceWhy may a cake not rise properly if baking powder has no mild acid?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11MediumScienceThe gas formed on heating baking soda is passed through lime water. What will happen?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11MediumScienceAn unknown solid gives a gas with acid. The gas turns lime water milky and the milkiness disappears on passing excess gas. What is likely present in the solid?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11HardScienceIn which reaction are salt, water, and carbon dioxide all definitely formed?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11MediumScienceWhy does the basicity decrease when carbon dioxide is passed through sodium hydroxide solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11HardScienceSodium carbonate solution is basic and gives a gas with acid. How will this gas be identified?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10MediumScienceBaking powder reacts little in a dry container but produces gas in moist dough. What is the reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium