Class 7 Exam > Class 7 Questions > Which of the following statements is true?a)C...
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Which of the following statements is true?
- a)Cutting a log of wood into pieces is a chemical change.
- b)Formation of manure from leaves is a physical change.
- c)Iron pipes coated with zinc do not get rusted easily.
- d)Iron and rust are the same substances.
Correct answer is option 'C'. Can you explain this answer?
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Which of the following statements is true?a)Cutting a log of wood into...
Coating iron pipes with zinc prevents them from rusting easily because zinc acts as a protective barrier, preventing iron from reacting with moisture and oxygen. Cutting wood is a physical change, manure formation is a chemical change, and iron and rust are different substances, with rust being an oxide of iron.
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Which of the following statements is true?a)Cutting a log of wood into...
Explanation:
Iron pipes coated with zinc do not get rusted easily:
- Zinc coating on iron pipes acts as a protective layer that prevents direct contact between iron and oxygen or moisture in the air.
- This protective layer of zinc is sacrificial, meaning it corrodes instead of the iron, thus preventing rusting of the iron pipes.
- This process is known as galvanization, and it is commonly used to protect iron and steel from rusting.
Therefore, the statement "Iron pipes coated with zinc do not get rusted easily" is true because the zinc coating on the iron pipes prevents rusting by acting as a protective barrier.
Iron pipes coated with zinc do not get rusted easily:
- Zinc coating on iron pipes acts as a protective layer that prevents direct contact between iron and oxygen or moisture in the air.
- This protective layer of zinc is sacrificial, meaning it corrodes instead of the iron, thus preventing rusting of the iron pipes.
- This process is known as galvanization, and it is commonly used to protect iron and steel from rusting.
Therefore, the statement "Iron pipes coated with zinc do not get rusted easily" is true because the zinc coating on the iron pipes prevents rusting by acting as a protective barrier.
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Which of the following statements is true?a)Cutting a log of wood into pieces is a chemical change.b)Formation of manure from leaves is a physical change.c)Iron pipes coated with zinc do not get rusted easily.d)Iron and rust are the same substances.Correct answer is option 'C'. Can you explain this answer?
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Which of the following statements is true?a)Cutting a log of wood into pieces is a chemical change.b)Formation of manure from leaves is a physical change.c)Iron pipes coated with zinc do not get rusted easily.d)Iron and rust are the same substances.Correct answer is option 'C'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Which of the following statements is true?a)Cutting a log of wood into pieces is a chemical change.b)Formation of manure from leaves is a physical change.c)Iron pipes coated with zinc do not get rusted easily.d)Iron and rust are the same substances.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is true?a)Cutting a log of wood into pieces is a chemical change.b)Formation of manure from leaves is a physical change.c)Iron pipes coated with zinc do not get rusted easily.d)Iron and rust are the same substances.Correct answer is option 'C'. Can you explain this answer?.
Which of the following statements is true?a)Cutting a log of wood into pieces is a chemical change.b)Formation of manure from leaves is a physical change.c)Iron pipes coated with zinc do not get rusted easily.d)Iron and rust are the same substances.Correct answer is option 'C'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Which of the following statements is true?a)Cutting a log of wood into pieces is a chemical change.b)Formation of manure from leaves is a physical change.c)Iron pipes coated with zinc do not get rusted easily.d)Iron and rust are the same substances.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is true?a)Cutting a log of wood into pieces is a chemical change.b)Formation of manure from leaves is a physical change.c)Iron pipes coated with zinc do not get rusted easily.d)Iron and rust are the same substances.Correct answer is option 'C'. Can you explain this answer?.
Solutions for Which of the following statements is true?a)Cutting a log of wood into pieces is a chemical change.b)Formation of manure from leaves is a physical change.c)Iron pipes coated with zinc do not get rusted easily.d)Iron and rust are the same substances.Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 7.
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Which of the following statements is true?a)Cutting a log of wood into pieces is a chemical change.b)Formation of manure from leaves is a physical change.c)Iron pipes coated with zinc do not get rusted easily.d)Iron and rust are the same substances.Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Which of the following statements is true?a)Cutting a log of wood into pieces is a chemical change.b)Formation of manure from leaves is a physical change.c)Iron pipes coated with zinc do not get rusted easily.d)Iron and rust are the same substances.Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Which of the following statements is true?a)Cutting a log of wood into pieces is a chemical change.b)Formation of manure from leaves is a physical change.c)Iron pipes coated with zinc do not get rusted easily.d)Iron and rust are the same substances.Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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