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Which of the following is an example of a pure substance?
- a)Air
- b)none
- c)Salt
- d)Soil
Correct answer is option 'C'. Can you explain this answer?
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Which of the following is an example of a pure substance?a)Airb)nonec)...
Example of a Pure Substance: Salt
• Definition: A pure substance is a material that has a fixed chemical composition and distinct properties. It cannot be separated into other substances by physical means.
• Explanation: Salt (sodium chloride) is a pure substance because it is composed of only sodium and chlorine atoms in a fixed ratio. It has specific properties such as a high melting point and solubility in water.
• Comparison:
- Air is a mixture of gases like oxygen, nitrogen, and carbon dioxide, making it impure.
- Water is a compound consisting of hydrogen and oxygen atoms, but it can exist in different forms (liquid, solid, gas), so it is not a pure substance.
- Soil is a complex mixture of minerals, organic matter, and living organisms, thus not a pure substance.
• Characteristics: Pure substances have a sharp melting and boiling point, a specific crystalline structure, and homogeneous properties throughout the material.
• Applications: Salt is widely used in cooking, preserving food, and in various industries such as chemical manufacturing and water treatment. It showcases the importance of understanding pure substances in daily life.
• Definition: A pure substance is a material that has a fixed chemical composition and distinct properties. It cannot be separated into other substances by physical means.
• Explanation: Salt (sodium chloride) is a pure substance because it is composed of only sodium and chlorine atoms in a fixed ratio. It has specific properties such as a high melting point and solubility in water.
• Comparison:
- Air is a mixture of gases like oxygen, nitrogen, and carbon dioxide, making it impure.
- Water is a compound consisting of hydrogen and oxygen atoms, but it can exist in different forms (liquid, solid, gas), so it is not a pure substance.
- Soil is a complex mixture of minerals, organic matter, and living organisms, thus not a pure substance.
• Characteristics: Pure substances have a sharp melting and boiling point, a specific crystalline structure, and homogeneous properties throughout the material.
• Applications: Salt is widely used in cooking, preserving food, and in various industries such as chemical manufacturing and water treatment. It showcases the importance of understanding pure substances in daily life.
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Which of the following is an example of a pure substance?a)Airb)nonec)...
An example of a pure substance is (c) Salt. A pure substance consists of only one type of substance and has a definite composition. Salt, in this case, refers to a specific compound, sodium chloride (NaCl).
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Which of the following is an example of a pure substance?a)Airb)nonec)Saltd)SoilCorrect answer is option 'C'. Can you explain this answer?
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Which of the following is an example of a pure substance?a)Airb)nonec)Saltd)SoilCorrect answer is option 'C'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following is an example of a pure substance?a)Airb)nonec)Saltd)SoilCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is an example of a pure substance?a)Airb)nonec)Saltd)SoilCorrect answer is option 'C'. Can you explain this answer?.
Which of the following is an example of a pure substance?a)Airb)nonec)Saltd)SoilCorrect answer is option 'C'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following is an example of a pure substance?a)Airb)nonec)Saltd)SoilCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is an example of a pure substance?a)Airb)nonec)Saltd)SoilCorrect answer is option 'C'. Can you explain this answer?.
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