Class 10 Exam > Class 10 Questions > Which among the following alloys contain merc...
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Which among the following alloys contain mercury as one of its constituents ?
- a)Stainless steel
- b)Alnico
- c)Solder
- d)Zinc amalgam
Correct answer is option 'D'. Can you explain this answer?
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Which among the following alloys contain mercury as one of its constit...
- Stainless Steel : Iron, Nickel, Chromium, Carbon, Manganese.
- Alnico : Aluminium, Nickel, Cobalt.
- Solder : Lead and tin.
- Zinc amalgam : Amalgams are mercury compounds (essentially solutions) of metals.
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Which among the following alloys contain mercury as one of its constit...
Mercury, a chemical element, is known for its unique properties such as being a liquid at room temperature. It can form amalgams with several metals, including zinc. An amalgam is an alloy consisting of mercury and one or more other metals.
The correct answer to the question is option D, which states that zinc amalgam contains mercury as one of its constituents. Let's understand why.
Zinc amalgam:
- Zinc amalgam is an alloy that consists of zinc as the primary metal and mercury as the secondary metal.
- Amalgamation is the process of combining mercury with another metal to form an amalgam. In the case of zinc amalgam, zinc is mixed with liquid mercury.
- This alloy is commonly used in dentistry, particularly for dental fillings. It has good manipulation properties and is easy to shape before hardening.
- The use of zinc amalgam in dental fillings has significantly decreased due to concerns about the toxicity of mercury. However, it is still occasionally used in certain dental practices.
Other options explained:
a) Stainless steel:
- Stainless steel is an alloy primarily composed of iron, chromium, and nickel, among other elements. It does not contain mercury as one of its constituents.
- Stainless steel is known for its corrosion resistance and strength, making it suitable for a wide range of applications such as kitchen appliances, construction, and medical instruments.
b) Alnico:
- Alnico is a family of alloys composed of aluminum, nickel, and cobalt, with small amounts of other elements like copper and iron. It does not contain mercury as one of its constituents.
- Alnico magnets have high magnetic strength and are commonly used in various applications, including electric motors, guitar pickups, and loudspeakers.
c) Solder:
- Solder is a fusible metal alloy used to join two metals together by melting and flowing it into the joint. Common solder alloys include tin-lead and tin-silver. None of these contain mercury as one of their constituents.
- Solder is widely used in electrical and electronic industries for soldering components onto circuit boards and creating electrical connections.
In conclusion, among the given options, only zinc amalgam contains mercury as one of its constituents. The other alloys mentioned, such as stainless steel, alnico, and solder, do not contain mercury.
The correct answer to the question is option D, which states that zinc amalgam contains mercury as one of its constituents. Let's understand why.
Zinc amalgam:
- Zinc amalgam is an alloy that consists of zinc as the primary metal and mercury as the secondary metal.
- Amalgamation is the process of combining mercury with another metal to form an amalgam. In the case of zinc amalgam, zinc is mixed with liquid mercury.
- This alloy is commonly used in dentistry, particularly for dental fillings. It has good manipulation properties and is easy to shape before hardening.
- The use of zinc amalgam in dental fillings has significantly decreased due to concerns about the toxicity of mercury. However, it is still occasionally used in certain dental practices.
Other options explained:
a) Stainless steel:
- Stainless steel is an alloy primarily composed of iron, chromium, and nickel, among other elements. It does not contain mercury as one of its constituents.
- Stainless steel is known for its corrosion resistance and strength, making it suitable for a wide range of applications such as kitchen appliances, construction, and medical instruments.
b) Alnico:
- Alnico is a family of alloys composed of aluminum, nickel, and cobalt, with small amounts of other elements like copper and iron. It does not contain mercury as one of its constituents.
- Alnico magnets have high magnetic strength and are commonly used in various applications, including electric motors, guitar pickups, and loudspeakers.
c) Solder:
- Solder is a fusible metal alloy used to join two metals together by melting and flowing it into the joint. Common solder alloys include tin-lead and tin-silver. None of these contain mercury as one of their constituents.
- Solder is widely used in electrical and electronic industries for soldering components onto circuit boards and creating electrical connections.
In conclusion, among the given options, only zinc amalgam contains mercury as one of its constituents. The other alloys mentioned, such as stainless steel, alnico, and solder, do not contain mercury.
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Which among the following alloys contain mercury as one of its constituents ?a)Stainless steelb)Alnicoc)Solderd)Zinc amalgamCorrect answer is option 'D'. Can you explain this answer?
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