S & P Block ElementsGroup 2 Reactions with Water1Choose the best answerWhich statement correctly describes the reactions of Group 2 metals with water?ABe reacts vigorously with cold water, whereas Mg does not.BBe is unreactive, Mg reacts mainly with steam, while Ca, Sr and Ba react more readily.CAll Group 2 metals react equally with cold water.DOnly Be and Mg liberate H₂ from water. Like 0 Discuss 0Share
S & P Block ElementsOxides of Alkali Metals2Choose the best answerSodium burns in excess oxygen mainly to form:ANa₂OBNaO₂CNa₂O₂DNa₂O₃ Like 0 Discuss 0Share
S & P Block ElementsReactivity of Alkali Metals3Choose the best answerSodium reacts less vigorously with water than potassium because sodium is:AHigher in atomic massBLess electropositiveCLower in ionization energyDA non-metal Like 0 Discuss 0Share
S & P Block Elementsp-Block Elements4Choose the best answerAn element belongs to the p-block when its differentiating electron enters:Ans orbitalBnp orbitalC(n−1)d orbitalD(n−2)f orbital Like 0 Discuss 0Share
S & P Block ElementsGroup 2 Reactions with Water5Choose the best answerWhich statement concerning magnesium and water is correct?AMg reacts vigorously with cold water.BMg reacts only very slowly with cold water.CMg produces Mg₂O on reaction with water.DMg liberates chlorine from cold water. Like 0 Discuss 0Share