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Reactivity Series

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

ScienceMagnesium gives brisk bubbles with an acid, but copper does not. What is the reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11MediumScienceIf one metal gives no gas with an acid and another metal gives gas rapidly with the same acid, what is the correct basis of comparison?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10MediumScienceMagnesium reacts faster with an acid than iron does. What does this show?Class 10Metals and Non-metalsReactivity seriesLevel 9MediumScienceA metal does not give hydrogen gas with an acid, but zinc gives gas in the same acid. Which conclusion is correct?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9HardScienceWhy is the gas formed by adding a metal to an acid not obtained with every metal?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8MediumScienceA dilute acid gives gas with a metal, but the same acid generally gives no gas with copper. What is the main reason?Class 10Metals and Non-metalsReactivity seriesLevel 7MediumScienceWhy does copper generally not produce hydrogen gas with dilute hydrochloric acid?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9MediumScienceA gas released in the reaction of a metal with an acid gives a pop sound near a burning splint. Which gas is it?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9MediumScienceA clean iron nail is placed in blue copper sulphate solution. A reddish-brown coating forms and the solution turns light green. Which conclusion is correct?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5MediumScienceA student placed an iron nail in blue copper sulphate solution. The solution gradually turned green and a reddish-brown coating appeared on the nail. Which statement is correct?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5MediumScienceWhich of the following reactions is both a displacement reaction and an oxidation-reduction reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5MediumScienceMetal A is less reactive than metal B. What happens when metal A is placed in the salt of metal B?Class 10Metals and Non-metalsReactivity seriesLevel 5MediumScienceMetal A displaces metal B and metal B displaces metal C from their salts. What is the correct decreasing order of reactivity?Class 10Metals and Non-metalsReactivity seriesLevel 5MediumScienceWhy does copper deposit when an iron nail is placed in copper sulphate solution?Class 10Metals and Non-metalsReactivity seriesLevel 5MediumScienceWhen an iron nail is placed in a blue copper sulphate solution, the solution gradually turns green and a reddish-brown coating forms on the nail. What type of reaction is this?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4ExpertScienceHow is the reaction Zn + CuSO₄ → ZnSO₄ + Cu most accurately classified?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4HardScienceMetal A is less reactive than metal B. What will happen when metal A is placed in the salt solution of metal B?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4ExpertScienceMetal A displaces metal B, and metal B displaces metal C. Which metal is the least reactive?Class 10Metals and Non-metalsReactivity seriesLevel 4MediumScienceCopper deposits on an iron nail placed in copper sulphate solution. This observation is based on which principle?Class 10Chemical Substances – Nature and BehaviourMetals and Non-metalsLevel 4MediumScienceA student places a zinc strip in a blue copper sulphate solution and claims that no chemical reaction has occurred. Which observation would prove the student's conclusion wrong?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert