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Chemical Reactions

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

ScienceWhat is generally formed when an acid reacts with a base?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8EasyScienceWhich gas is released when an acid reacts with a metal carbonate?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8EasyScienceWhich process do antioxidants slow down in food?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5ExpertScienceWhy is rancidity slower in nitrogen-filled food packets?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5EasyScienceWhich of the following reactions is both a displacement reaction and an oxidation-reduction reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5MediumScienceHow does the zinc layer protect iron in galvanisation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5ExpertScienceIf substance A loses oxygen and substance B loses hydrogen which processes occur respectively?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5ExpertScienceWhich products are formed when barium chloride and sodium sulphate solutions are mixed?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5ExpertScienceAt which electrode is the gas with greater volume obtained during electrolysis of water?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5ExpertScienceWhy does grey colour appear when silver chloride is kept in light?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5MediumScienceWhy is it wrong to consider the brown gas in lead nitrate experiment as oxygen?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5MediumScienceIn thermal decomposition of lead nitrate the yellow solid residue is of which substance?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5MediumScienceWhat is the correct set of brown gas and colourless gas formed on heating lead nitrate?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5MediumScienceTurning lime water milky is a strong experimental indication for which gas?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5MediumScienceWhich is the correct pair of solid residue and gas in decomposition of calcium carbonate?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5MediumScienceWhen calcium carbonate is heated a solid and a gas are formed. What type of reaction is this?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5MediumScienceWhat are the product and energy change when water is added to calcium oxide?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5MediumScienceHow is burning of magnesium both combination and oxidation at the same time?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5MediumScienceCleaning magnesium ribbon before burning removes which obstacle?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5MediumScienceHow many total atoms are present in three water molecules?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5Expert