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How can the flame test be used to identify unknown metal ions?
- a)By comparing the flame colors with a reference chart
- b)By measuring the temperature of the flame
- c)By conducting a series of chemical reactions
- d)By analyzing the emitted gases from the flame
Correct answer is option 'A'. Can you explain this answer?
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How can the flame test be used to identify unknown metal ions?a)By com...
Using Flame Test to Identify Unknown Metal Ions
Identifying unknown metal ions using the flame test involves observing the color of the flame when the metal ion is heated. The flame test is based on the principle that different metal ions emit characteristic colors when they are heated in a flame. Here's how the flame test can be used to identify unknown metal ions:
Reference Chart Comparison:
- One of the main ways to identify unknown metal ions is by comparing the observed flame color with a reference chart that lists the flame colors produced by various metal ions. Each metal ion produces a unique flame color due to the excitation of electrons to higher energy levels and subsequent emission of light as they return to their ground state. By matching the observed flame color with the reference chart, the unknown metal ion can be identified.
Procedure:
- To conduct the flame test, a small sample of the unknown metal ion is placed in a flame using a looped wire. The color of the flame is then observed and compared to the colors on the reference chart. Common flame colors produced by metal ions include red, orange, yellow, green, blue, and purple.
Accuracy:
- While the flame test is a simple and quick method for identifying metal ions, it may not always be accurate due to the presence of impurities or the interference of other ions. In such cases, additional confirmatory tests may be required to accurately identify the unknown metal ion.
Using the flame test to identify unknown metal ions is a useful and widely used technique in chemistry laboratories due to its simplicity and effectiveness in distinguishing between different metal ions based on their characteristic flame colors.
Identifying unknown metal ions using the flame test involves observing the color of the flame when the metal ion is heated. The flame test is based on the principle that different metal ions emit characteristic colors when they are heated in a flame. Here's how the flame test can be used to identify unknown metal ions:
Reference Chart Comparison:
- One of the main ways to identify unknown metal ions is by comparing the observed flame color with a reference chart that lists the flame colors produced by various metal ions. Each metal ion produces a unique flame color due to the excitation of electrons to higher energy levels and subsequent emission of light as they return to their ground state. By matching the observed flame color with the reference chart, the unknown metal ion can be identified.
Procedure:
- To conduct the flame test, a small sample of the unknown metal ion is placed in a flame using a looped wire. The color of the flame is then observed and compared to the colors on the reference chart. Common flame colors produced by metal ions include red, orange, yellow, green, blue, and purple.
Accuracy:
- While the flame test is a simple and quick method for identifying metal ions, it may not always be accurate due to the presence of impurities or the interference of other ions. In such cases, additional confirmatory tests may be required to accurately identify the unknown metal ion.
Using the flame test to identify unknown metal ions is a useful and widely used technique in chemistry laboratories due to its simplicity and effectiveness in distinguishing between different metal ions based on their characteristic flame colors.
Community Answer
How can the flame test be used to identify unknown metal ions?a)By com...
The flame test can be used to identify unknown metal ions by comparing the observed flame colors with a reference chart or database of known flame colors for different metal ions. Each metal ion emits a unique flame color, allowing for the identification of the metal present based on the observed color.
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How can the flame test be used to identify unknown metal ions?a)By comparing the flame colors with a reference chartb)By measuring the temperature of the flamec)By conducting a series of chemical reactionsd)By analyzing the emitted gases from the flameCorrect answer is option 'A'. Can you explain this answer?
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How can the flame test be used to identify unknown metal ions?a)By comparing the flame colors with a reference chartb)By measuring the temperature of the flamec)By conducting a series of chemical reactionsd)By analyzing the emitted gases from the flameCorrect answer is option 'A'. Can you explain this answer? for JAMB 2025 is part of JAMB preparation. The Question and answers have been prepared according to the JAMB exam syllabus. Information about How can the flame test be used to identify unknown metal ions?a)By comparing the flame colors with a reference chartb)By measuring the temperature of the flamec)By conducting a series of chemical reactionsd)By analyzing the emitted gases from the flameCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JAMB 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How can the flame test be used to identify unknown metal ions?a)By comparing the flame colors with a reference chartb)By measuring the temperature of the flamec)By conducting a series of chemical reactionsd)By analyzing the emitted gases from the flameCorrect answer is option 'A'. Can you explain this answer?.
How can the flame test be used to identify unknown metal ions?a)By comparing the flame colors with a reference chartb)By measuring the temperature of the flamec)By conducting a series of chemical reactionsd)By analyzing the emitted gases from the flameCorrect answer is option 'A'. Can you explain this answer? for JAMB 2025 is part of JAMB preparation. The Question and answers have been prepared according to the JAMB exam syllabus. Information about How can the flame test be used to identify unknown metal ions?a)By comparing the flame colors with a reference chartb)By measuring the temperature of the flamec)By conducting a series of chemical reactionsd)By analyzing the emitted gases from the flameCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JAMB 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How can the flame test be used to identify unknown metal ions?a)By comparing the flame colors with a reference chartb)By measuring the temperature of the flamec)By conducting a series of chemical reactionsd)By analyzing the emitted gases from the flameCorrect answer is option 'A'. Can you explain this answer?.
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