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 Reactions

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

ScienceWhat is the main purpose of adding dilute sulfuric acid during the electrolysis of water?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceA student places a clean iron nail in a blue copper sulphate solution. Which observation most clearly shows that a displacement reaction has occurred?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceWhat is the correct order of gases produced at the anode and cathode during the electrolysis of water?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceDuring electrolysis of water, if the volume of oxygen produced is 12 mL at the same temperature and pressure, what volume of hydrogen is produced?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceWhy are light-sensitive silver salts, such as silver chloride, stored in dark-coloured bottles?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceWhen white silver chloride g( gCl) is exposed to sunlight, it turns grey. Which product is responsible for this colour change?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceA student places a zinc strip in a blue copper sulphate solution and says that the blue colour fades because copper is more reactive than zinc. Which correction to this statement is correct?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceOn heating lead nitrate, brown fumes indicate the presence of which gas?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceWhich substance is the yellow solid residue formed on thermal decomposition of lead nitrate?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceWhich pair correctly identifies the brown gas and the colourless gas formed when lead nitrate is heated?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceDuring the thermal decomposition of calcium carbonate, the evolved gas is passed through lime water, which turns milky. This confirms the presence of which gas?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceIn the reaction \(\mathrm{CuO + H_2 \rightarrow Cu + H_2O}\), which of the following statement is correct?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceWhy is the reaction between calcium oxide and water called an exothermic combination reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceWhat is the correct name of the product formed when water is added to calcium oxide?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceWhy does removing the layer formed on the surface of a magnesium ribbon make its burning clearer?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceIf the number of atoms of any one element is not the same on the reactant and product sides of a chemical equation, what is the equation called?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceWhy is it safer to change coefficients rather than subscripts when balancing a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceWhile balancing a chemical equation, the number of atoms of each element is kept the same on the reactant and product sides. Which law does this demonstrate?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceIn an unknown process, a new substance was formed, the colour changed, and the total mass remained the same in a closed container. What is the most appropriate conclusion?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 2Expert ScienceWhat is the correct distinction between the symbols ext{(aq)} and ext{(l)} in a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 2Expert