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What is the sum of all the mole fractions in a given solution?

Options

  1. AThe sum of all the mole fractions is always 0.
  2. BThe sum of all the mole fractions is always 1.
  3. CThe sum of all the mole fractions depends on the nature of the components.
  4. DThe sum of all the mole fractions is undefined.

Correct answer

B. The sum of all the mole fractions is always 1.

Step-by-step solution

The paragraph states that in a given solution, the sum of all the mole fractions is unity, which means it is always equal to 1.

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