Multiple choice

The chemical composition of which of the following substances is fixed?

  1. Tea

  2. Milk

  3. Jam

  4. Glucose
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Glucose is a chemical compound with a fixed chemical formula (C6H12O6), meaning its composition is constant. Tea, milk, and jam are mixtures with variable compositions depending on their preparation.

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