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Chemistry · Some Basic Concepts of Chemistry

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Which of the following properties requires a chemical transformation or reaction to be measured and observed?

  1. Combustibility and acidity
  2. Melting point and refractive index
  3. Density and electrical conductivity
  4. Colour and boiling point

Correct answer · Option 1

Combustibility and acidity

Explanation

Measurement or observation of chemical properties, such as combustibility and acidity/basicity, requires a chemical change to occur.

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