A-Level ChemistryYear 2017Q11
Page 05 11. Which of the following describes the bonding in ethane? A sp2 hybridisation with sigma bonds only. B sp3 hybridisation with sigma bonds only. C sp2 hybridisation with sigma and pi bonds. D sp3 hybridisation with sigma and pi bonds. 12. Pyridine has the following structure. N The number of sigma bonds in a molecule of pyridine is A 3 B 6 C 11 D 12. 13. A racemic mixture is defined as A a mixture of two enantiomers B a pair of enantiomers mixed in equal proportions C a mixture of two geometric isomers D a pair of geometric isomers mixed in equal proportions. [Turn over
Paper Source:NAH_Chemistry_all_2017.pdf
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Exam Specification Info
This question is part of the UK A-Level Chemistry syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.
Syllabus levelAdvanced Level (A-Level)
SubjectChemistry
Official MarksVariable (2–6 marks)