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Miracle Learning Centre Chemistry Tuition Question on Extraction and Properties of Metals. (O Level Chemistry Tuition/ IP Chemistry Tuition)

1. Zinc displaces iron from aqueous iron (II) sulfate because A zinc has a higher proton number than iron. B zinc atoms lose electrons more readily than iron atom. C zinc atoms can oxidise Fe2+ ions to Fe atoms. D zinc sulfate is more soluble than iron (II) sulfate.

2. Aluminium metal does not corrode easily because A it does not react with air. B an oxide layer protects the metal. C it is low in the reactivity series. D it reacts with water to form a protective layer of hydrogen.

3. Different forms of steel contain differing amounts of carbon. Steel S1 contains a high proportion of carbon. Steel S2 contains a low proportion of carbon. Which statement is correct? A S1 is stronger but more brittle than S2. B S1 is stronger but less brittle than S2. C S1 is less strong but more brittle than S2. D S1 is less strong but less brittle than S2. Miracle Learning Centre Answer to Chemistry Tuition Question on Extraction and Properties of Metals. (O Level Chemistry Tuition/ IP Chemistry Tuition) 1.B 2.B 3.A Learn from our Chemistry Tuition Questions and Answers. Miracle Learning Centre Call 6463 8756 or sms 8128 8342/9839 9908. (Specialist in Science and Maths) for Primary, Secondary and JC levels. Miracle Learning Centre specialises in Chemistry tuition, Physics tuition, Maths tuition and Science tuition Classes.