Science
Metals and Non Metals Which of the following is the most malleable metal?a) Ironb) Aluminiumc) Goldd) ZincAnswer: c) Gold Which metal is a liquid at room temperature?a) Mercuryb) Sodiumc) Potassiumd) LeadAnswer: a) Mercury What property allows metals to be drawn into wires?a) Malleabilityb) Ductilityc) Conductivityd) HardnessAnswer: b) Ductility The oxide of which element is amphoteric?a) […]
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Acids Bases and Salts What is the taste of acids?a) Bitterb) Sourc) Sweetd) SaltyAnswer: b) Sour What is the taste of bases?a) Sweetb) Sourc) Bitterd) SaltyAnswer: c) Bitter Which indicator changes from blue to red in the presence of an acid?a) Phenolphthaleinb) Methyl orangec) Red litmusd) Blue litmusAnswer: d) Blue litmus Which substance turns a
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Chemical Reactions and Equations What is a chemical reaction?a) A process that only involves physical changesb) A process where the identity of a substance changesc) A method to mix substances without changed) A way to store chemical substancesAnswer: b) A process where the identity of a substance changes Which of the following indicates a
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