Question

The substances which absorb moister from air, but do not change their state are called

• A. drystals
• B. deliquescent substances
• C. hygroscopic substances
• D. hydrated substances

Answer 1

The correct option is C

hygroscopic substances

The explanation for the right answer:

Option C: Hygroscopic substances

• Hygroscopic substances are those substances that absorb moisture from the surroundings but do not get dissolved in the absorbed water.
• It does not change their state.

• So, option C is the correct answer.

The explanations for the wrong answers:

Option A: Crystals

• A solid substance in which atoms or molecules are arranged in a repeating pattern is known as a crystal.
• Crystals are made by crystallization.
• So, option A is the wrong answer.

Option B: Deliquescent substances

• Deliquescent substances are those substances that absorb moisture from the surroundings and get dissolved in the absorbed water.
• It forms a solution.

• So, option B is the wrong answer.

Option D: Hydrated substances

• Word Hydrous is referred to a substance that contains water molecules as a constituent.
• These hydrous compounds are called hydrates.
• So, option D is the wrong answer.

Conclusion:

The substances which absorb moister from the air, but do not change their state are called hygroscopic substances.

Therefore, Option C is the correct answer.