The flame test method of analysis can be used to distinguish between
A - VCE - SSCE Chemistry - Question 1 - 2006 - Paper 1
Question 1
The flame test method of analysis can be used to distinguish between
A. methanol and ethanol.
B. sulfuric acid and nitric acid.
C. lithium nitrate and calcium nitrat... show full transcript
Worked Solution & Example Answer:The flame test method of analysis can be used to distinguish between
A - VCE - SSCE Chemistry - Question 1 - 2006 - Paper 1
Step 1
A. methanol and ethanol.
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Answer
The flame test cannot reliably distinguish between methanol and ethanol, as they both produce a similar flame color.
Step 2
B. sulfuric acid and nitric acid.
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Answer
Flame tests are not typically used for distinguishing strong acids like sulfuric acid and nitric acid.
Step 3
C. lithium nitrate and calcium nitrate.
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Answer
This is the correct pair. The flame test can distinguish between lithium salts, which produce a red flame, and calcium salts, which produce an orange-red flame.
Step 4
D. sodium carbonate and sodium chloride.
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Answer
Both sodium carbonate and sodium chloride yield a yellow flame, making them indistinguishable using a flame test.
