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

ScienceWhich product is not formed when baking soda is heated?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13MediumScienceWhich set of products is correct when baking soda is heated?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8MediumScienceA metal and an acid react to form a salt and hydrogen gas. If the metal is magnesium and the acid is sulphuric acid, which salt will be formed?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10MediumScienceWhich salt is formed in the reaction between potassium hydroxide and hydrochloric acid?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10MediumScienceWhich salt is formed when sodium hydroxide reacts with nitric acid?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10MediumScienceWhat products are formed when an acid reacts with a metal hydrogen carbonate?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 5MediumScienceWhy is a precipitate shown by a downward arrow in an equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3EasyScienceWhat is the solid residue in the thermal decomposition of lead nitrate?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1MediumScienceA student heated copper powder in air. The reddish-brown copper turned black. Which statement about this change is correct?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4EasyScienceWhy is respiration considered a chemical reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4MediumScienceIn which example does a colour change occur along with the formation of new substances?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 2MediumScienceWhat is the role of substances written on the right side of a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7EasyScienceWhat is the role of substances written on the left side of a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy