Understanding Chemical Reactions: Classification of Substances

Two substances A and B were made to react to form a third substance, A2B

Which of the following statement concerning this reaction are incorrect?

  1. The product A2B shows the properties of substances A and B
  2. The product will always have a fixed composition
  3. The product so formed cannot be classified as a compound
  4. The product so formed is an element

Question:

Which of the following statement concerning this reaction are incorrect?

Final Answer:

The product formed in the reaction can be classified as a compound, not an element.

Explanation:

The correct answer is (c) 2, 3, 4.

Statement 1 is correct because the product A2B shows the properties of substances A and B.

Statement 2 is incorrect because the product may not always have a fixed composition. The ratio of A to B in the product can vary.

Statement 3 is incorrect because the product formed in this reaction can be classified as a compound.

Statement 4 is incorrect because the product formed is a compound, not an element.

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