Question

Nitrogen in soil is an example for:

• A. True solution
• B. Saturated
• C. Super saturated
• D. Unsaturated

Hint:

Saturated solutions contain the maximum amount of solute that can dissolve at a specific temperature and pressure.

Answer 1

The Correct Option is B

Nitrogen in soil is considered a saturated solution. In chemistry, a saturated solution is one where a solute is dissolved in a solvent to the maximum extent possible at a given temperature and pressure. Any addition of solute beyond this point will not dissolve in the solvent and will settle out as a precipitate or remain undissolved.

In the context of soil, nitrogen acts as a solute, and the soil acts as a solvent. The soil can hold a certain amount of nitrogen, and once it reaches its capacity, it becomes saturated. Hence, the correct answer is "Saturated."

Answer 2

Nitrogen present in soil is being classified as a type of solution here, based on how much of it the soil is holding relative to its capacity. Check each option against that idea of capacity.

1. True solution: this term describes particle size and clarity of a dissolved solute, not how full a system is relative to its holding capacity, so it does not answer the question being asked.
2. Saturated: a saturated condition means the soil is holding as much nitrogen as it can under the given conditions, right at its capacity limit. This matches the description of nitrogen in soil reaching its maximum holding level.
3. Super saturated: this would mean the soil holds more nitrogen than its normal capacity allows, an unstable and temporary state, not the steady condition described here.
4. Unsaturated: this would mean the soil could still take up more nitrogen, which is the opposite of it being at capacity.

Nitrogen in soil, held right at the soil's normal capacity, matches the saturated condition.

So the correct answer is saturated.