Skip to content

Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

RELATED QUESTIONS

Chemical Equations

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

ScienceWhich correctly identifies the oxidation and reduction changes in the reaction CuO + H₂ → Cu + H₂O?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Medium ScienceWhat is the correct difference between downward arrow and upward arrow?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceWhich of the following equations represents a double displacement reaction in which an insoluble precipitate is formed?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceIf heat is absorbed along with the reactants in a reaction and one compound breaks down to form two or more products, what type of reaction is it?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceIf heat is written on the products side of a chemical equation, what type of reaction does it represent?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceWhich statement is correct for the reaction \\(CuO + H_2 \rightarrow Cu + H_2O\\)?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceIn the reaction (2 ext{Al}+3 ext{CuCl}_2 ightarrow2 ext{AlCl}_3+3 ext{Cu}), a student says that 1 mol of aluminium will produce 1 mol of copper. Which statement correctly corrects the error?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceWhich of the following equations represents a displacement reaction in which oxidation and reduction occur simultaneously?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceIn the reaction \(\mathrm{CuO + H_2 \rightarrow Cu + H_2O}\), which reactant is the reducing agent?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceWhy is it incorrect to change the subscripts in the formula of a compound while balancing a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceIn the balanced equation for burning magnesium, \(2\mathrm{Mg}+\mathrm{O}_2\rightarrow2\mathrm{MgO}\), how many oxygen atoms are present on the product side?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceIn the reaction \(CuO + H_2 \rightarrow Cu + H_2O\), which substance is the reducing agent?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Hard ScienceWhich statement correctly identifies oxidation and reduction in the reaction \(\mathrm{CuO + H_2 \rightarrow Cu + H_2O}\)?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Hard ScienceWhat is the correct difference between the aqueous symbol \((aq)\) and the liquid symbol \((l)\) in a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Hard ScienceIf heat is written along with the products in a chemical equation and light is also emitted during the reaction, what is the nature of the reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Hard ScienceA student states that the reaction \(\mathrm{AgNO_3(aq)+NaCl(aq)\rightarrow AgCl(s)+NaNO_3(aq)}\) is both a precipitation reaction and a redox reaction. What is the correct evaluation of this statement?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Hard ScienceWhich of the following equations represents a double displacement reaction that forms a precipitate?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Medium ScienceA student writes the reaction for heating potassium chlorate as \(KClO_3 \xrightarrow{\Delta,\,MnO_2} KCl + O_2\). What is the correct evaluation of this equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Hard ScienceWhich of the following equations represents an exothermic combination reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Hard ScienceWhite silver chloride turns grey in sunlight. What type of reaction occurs, and which product causes the grey colour?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Hard