Give reasons for the following :

(a) Aluminium foils are used to wrap food items.

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(b) Immersion rods for heating liquids are made up of metallic substances.

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(c) Copper cannot displace zinc from its salt solution.

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(d) Sodium and potassium are stored in kerosene.

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  1. Class 8
  2. Chapter 4 Class 8 - Materials : Metals And Non-Metals

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CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 9 years and a teacher from the past 16 years. He teaches Spoken English, Written English, Grammar and Vocabulary at Englishtan.