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Chemical Reactions And Equations

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

ScienceWhat is a reaction called when oxidation and reduction both occur in the same reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceWhat is a precipitate formed in a precipitation reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceWhat is the simplest way to identify a double displacement reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceWhen a magnesium ribbon burns, the reaction is \(2Mg + O_2 \rightarrow 2MgO\). Which statement about this reaction is correct?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceWhen calcium oxide is mixed with water, heat is released. Based on the heat change, what type of reaction is this?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceWhich gas is produced when calcium carbonate is heated?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceWhat is the reaction called in which a compound breaks down into two or more simpler substances?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceWhat is a reaction called in which two substances combine to form one product?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceWhy is balancing an equation by changing chemical formulae wrong?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceWhat is the role of substances written on the right side of a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceWhat is the role of substances written on the left side of a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceWhy is it not correct to depend on only one sign while identifying a reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceA student places a clean iron nail in a blue copper sulphate solution for 20 minutes. Which observation correctly confirms that a displacement reaction has occurred?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceIf the temperature of a reaction mixture rises without external heating, what type of reaction does this indicate?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceIf temperature decreases in a reaction what type can it be?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceIn a combustion reaction, energy is generally released in which form?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhich symbol denotes the state of a substance dissolved in water in a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhich symbol represents the gaseous state in a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhich is the symbol for liquid state in a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhich state symbol represents a substance in the solid state in a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy