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After You Have Dinner Tonight, Wash Your Own Plates with Soap/Detergent. - Science and Technology 1

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After you have dinner tonight, wash your own plates with soap/detergent.

  1. What colour change is observed when soap/detergent is applied?
  2. Name the type of reaction and explain it.
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Solution

(a) When we wash our dinner plate with soap/detergent, the yellow oily leftover stains will turn red/orange due to its reaction with soap/detergent.

(b) It is a neutralisation reaction. The reaction between an acid and a base to form salt and water is called a neutralisation reaction.

Concept: Types of Double Displacement: Neutralization Reaction
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