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Read the following passage and answer the questions.
Sohan went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was sad but after a futile argument, the man beat a hasty retreat.
Examples of Noble metals are:
- a)Gold
- b)Silver
- c)Platinum
- d)All of the above
Correct answer is option 'D'. Can you explain this answer?
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Read the following passage and answer the questions.Sohan went door t...
Noble metal (gold, platinum, palladium, silver, rhodium, and ruthenium) and transition-metal (iron, nickel, copper) NPs are used in different catalytic reactions.
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Read the following passage and answer the questions.Sohan went door t...
Examples of Noble metals are:
- Gold
- Silver
- Platinum
- All of the above
Explanation:
The correct answer is option 'D', which means all of the above metals are examples of noble metals. Noble metals are a group of metals that are resistant to corrosion and oxidation in moist air. They have a high melting point and are generally unreactive.
Let's break down each noble metal mentioned in the options:
1. Gold:
- Gold is a highly valued precious metal known for its beauty and rarity.
- It is resistant to corrosion and does not tarnish easily.
- Gold is often used in jewelry, coins, and various decorative items.
2. Silver:
- Silver is another precious metal that has been used for centuries.
- It is also resistant to corrosion and has excellent electrical and thermal conductivity.
- Silver is commonly used in jewelry, silverware, and electrical contacts.
3. Platinum:
- Platinum is a dense, malleable, and highly unreactive metal.
- It is resistant to corrosion and has a high melting point.
- Platinum is widely used in the jewelry industry, as well as in catalytic converters, electrical contacts, and various chemical applications.
All three of these metals possess the characteristics of noble metals, making them examples of noble metals. They are highly valuable, resistant to corrosion, and have various industrial and decorative applications.
In the given passage, the man posing as a goldsmith used a particular solution to make the gold bangles sparkle like new. However, the weight of the bangles was reduced drastically, indicating that the solution used might have caused the gold to dissolve or erode. This suggests that the man might have used a chemical that could react with the gold, potentially damaging its integrity.
It is important to be cautious when dealing with precious metals and to seek the expertise of reputable professionals.
- Gold
- Silver
- Platinum
- All of the above
Explanation:
The correct answer is option 'D', which means all of the above metals are examples of noble metals. Noble metals are a group of metals that are resistant to corrosion and oxidation in moist air. They have a high melting point and are generally unreactive.
Let's break down each noble metal mentioned in the options:
1. Gold:
- Gold is a highly valued precious metal known for its beauty and rarity.
- It is resistant to corrosion and does not tarnish easily.
- Gold is often used in jewelry, coins, and various decorative items.
2. Silver:
- Silver is another precious metal that has been used for centuries.
- It is also resistant to corrosion and has excellent electrical and thermal conductivity.
- Silver is commonly used in jewelry, silverware, and electrical contacts.
3. Platinum:
- Platinum is a dense, malleable, and highly unreactive metal.
- It is resistant to corrosion and has a high melting point.
- Platinum is widely used in the jewelry industry, as well as in catalytic converters, electrical contacts, and various chemical applications.
All three of these metals possess the characteristics of noble metals, making them examples of noble metals. They are highly valuable, resistant to corrosion, and have various industrial and decorative applications.
In the given passage, the man posing as a goldsmith used a particular solution to make the gold bangles sparkle like new. However, the weight of the bangles was reduced drastically, indicating that the solution used might have caused the gold to dissolve or erode. This suggests that the man might have used a chemical that could react with the gold, potentially damaging its integrity.
It is important to be cautious when dealing with precious metals and to seek the expertise of reputable professionals.
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Read the following passage and answer the questions.Sohan went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was sad but after a futile argument, the man beat a hasty retreat.Examples of Noble metals are:a)Goldb)Silverc)Platinumd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?
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Read the following passage and answer the questions.Sohan went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was sad but after a futile argument, the man beat a hasty retreat.Examples of Noble metals are:a)Goldb)Silverc)Platinumd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Read the following passage and answer the questions.Sohan went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was sad but after a futile argument, the man beat a hasty retreat.Examples of Noble metals are:a)Goldb)Silverc)Platinumd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Read the following passage and answer the questions.Sohan went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was sad but after a futile argument, the man beat a hasty retreat.Examples of Noble metals are:a)Goldb)Silverc)Platinumd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?.
Read the following passage and answer the questions.Sohan went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was sad but after a futile argument, the man beat a hasty retreat.Examples of Noble metals are:a)Goldb)Silverc)Platinumd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Read the following passage and answer the questions.Sohan went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was sad but after a futile argument, the man beat a hasty retreat.Examples of Noble metals are:a)Goldb)Silverc)Platinumd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Read the following passage and answer the questions.Sohan went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was sad but after a futile argument, the man beat a hasty retreat.Examples of Noble metals are:a)Goldb)Silverc)Platinumd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?.
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