A-LevelChemistryChemical bondingFeb/Mar 2025Paper 1 Q51 Mark
The structure of the hormone histamine is shown. Which row contains the bond angles x, y and z in histamine in the correct order from the smallest to the largest?
Ax y z
By x z
Cy z x
Dz y x
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The correct answer is A. This question tests the candidate's understanding of chemical bonding within the Chemistrysyllabus. The examiner's mark scheme requires...
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Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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