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6 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Animal and vegetable oils that contain.........fats can be hardened. |
Animal and vegetable oils that contain unsaturated fats can be hardened. |
B |
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Oils are hardened by a chemical reaction with.........gas. |
Oils are hardened by a chemical reaction with hydrogen gas. |
B |
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Rapeseed oil contains unsaturated fats. How could the students test the oil to show that it contained unsaturated fats? |
Test: Add a Bromine/Iodine solution Result of the test: If the Bromine is discoloured it will contain unsaturated fats. |
B |
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One student claimed that hardening would make the rapeseed oil healthier. Explain why the student is wrong. |
Hardening would increase the saturated fat. |
B |
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To make margarine from olive oil the percentage of unsaturated fat needs to be decreased. Give a reason why. |
To harden the oil, to solidify the oil, to increase its melting point |
B |
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Describe how to decrease the percentage of unsaturated fat in olive oil. |
React with hydrogen, using a nickel catalyst, at a temperature of about 60 degrees C. |
B |
