Three test tubes were set up as shown - HSC - SSCE Chemistry - Question 7 - 2017 - Paper 1
Question 7
Three test tubes were set up as shown.
Brown bromine water
Bromine water was added to X and Y in the absence of UV light.
Which of the following best represents t... show full transcript
Worked Solution & Example Answer:Three test tubes were set up as shown - HSC - SSCE Chemistry - Question 7 - 2017 - Paper 1
Step 1
Test Tube X
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Answer
Test tube X contains a compound that reacts with bromine, resulting in a color change. Since bromine water is brown, after the reaction, the brown color will disappear, indicating that the bromine has reacted.
Step 2
Test Tube Y
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Answer
Test tube Y contains a substance that does not react with bromine under these conditions. Therefore, the bromine water remains brown because there is no reaction taking place.
Step 3
Conclusion
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Answer
Based on these observations, we can conclude that test tube X will show a color change (browning will disappear), while test tube Y will remain brown. The correct representation of these changes is option C.
