Chemistry · May / June 2017 · Paper 11 · Question 32
Which row correctly compares carbon dioxide and methane?
- Aboth contain carbon ✓; both are described as a greenhouse gas ✗; both lower the pH of water when they dissolve in it ✓
- Bboth contain carbon ✓; both are described as a greenhouse gas ✓; both lower the pH of water when they dissolve in it ✗
- Cboth contain carbon ✗; both are described as a greenhouse gas ✓; both lower the pH of water when they dissolve in it ✓
- Dboth contain carbon ✗; both are described as a greenhouse gas ✓; both lower the pH of water when they dissolve in it ✗
As printed in the paper
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Correct answer: B. both contain carbon ✓; both are described as a greenhouse gas ✓; both lower the pH of water when they dissolve in it ✗
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