Metals And Non-Metals : Previous Years Questions Metal oxide generally reacts with acids, but few oxides of metals also react with bases, such metallic oxides are : MgO ZnO Al2O3 CaOa. 1 and 2 b. 2 and 3c. 3 and 4 d. 1 and 4 [1 mark] [CBSE 2023] Bronze is an alloy of a. […]
Metals and Non-Metals Previous Years Questions : Solutions Show the formation of Na2O by the transfer of electrons. [CBSE 2019] [2 Marks]Sol: Show the formation of magnesium oxide by the transfer of electrons. [CBSE 2019] [2 Marks]Sol: What are ionic compounds ? Why do ionic compounds not conduct electricity in the solid state? [CBSE 2019] [2 Marks]Sol:The compound […]
Metal and Non-Metals Important Questions In what forms are metals found in nature? With the help of examples explain how metals react with oxygen, water and dilute acids. Also write chemical equations for the reactions. How is copper obtained from its ore (Cu2S)? Write only the chemical equations. How is copper thus obtained refined? Name […]