5 Questions
According to the Saytzeff rule, which alkene is the major product in the given reaction?
1-methylcyclohexene
What is the product formed in the reaction C6H5CH (C6H5)Br?
C6H5CH (C6H5)+
Why does KMnO4 appear intense purple in color?
L→M (ligand to metal) charge transfer
Why does O-15 have a longer half-life compared to O-19?
Lower rate constant for decay
What is the molar conductivity (Λ) of OCH3COOK?
115 Scm2/mol
Study Notes
Chemistry Theory Marking Scheme Summary (2022-23)
- The Saytzeff rule determines the major product in the dehydration reaction, favoring highly substituted alkenes.
- The formation of a more stable carbocation results in the given chemical reaction, leading to the product C6H5CH (C6H5)+.
- The intense purple color of KMnO4 is attributed to ligand to metal (L→M) charge transfer from the 2p orbitals of oxygen to the 3d orbitals of manganese.
- O-15 has a slower rate of decay and a longer half-life compared to O-19 due to its lower rate constant for decay.
- The molar conductivity (Λ) of OCH3COOK is calculated as 115 Scm2/mol using the given conductivities of CH3COOH and KOHCl.
Test your knowledge of chemistry with this sample paper for the 2022-23 academic year. This quiz covers theory and marking scheme for Section A questions 1 to 18, including topics such as alkene formation, carbocation stability, and charge transfer. Sharpen your understanding of key concepts in chemistry theory.
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