Give structural formula of the following compounds. 1. Cinnamyl alcohol, 2. 1,2-butadiene, 3. Diallylether, 4. Isobutene, 5. Benzyl bromide, 6. Phenanthrene.
[6 marks]Define nitrene. Explain structure and reactions of nitrene.
[5 marks]Enumerate different methods for preparation of alkanes. Explain Corey House synthesis of alkane.
[5 marks]Comments on following statements. 1. Aromatic compounds undergo electrophilic substitutions only. 2. Acetylene is more acidic than ethane. 3. Epoxides are more reactive than ether.
[6 marks]Differentiate: SN1 and SN2 reactions.
[5 marks]What is Huckel’s rule? Write the structure of 3 heterocyclic compounds that follow this rule.
[5 marks]Explain following terms giving suitable examples. 1. Aromaticity, 2. Nucleophile, 3.Hybridization, 4. Bond polarity, 5. Inductive effect, 6. Hyperconjugation.
[6 marks]State and explain: Antimarcovnikov addition, Saytzeff’s rule.
[5 marks]Write the mechanism and limitations of Friedal-Crafts acylation of benzene.
[5 marks]Comments on following statements. 1. Alkenes undergo electrophilic addition reactions. 2. 1, 3-butadiene is more stable than 1, 2-butadiene. 3. Friedal Craft Alkylation of Nitrobenzene is difficult.
[6 marks]Differentiate: E1 and E2 reactions.
[5 marks]Write about reactions of Anthracene.
[5 marks]Enumerate different methods for preparation of ethers. Explain Williamson’s synthesis of ether in detail.
[6 marks]Differentiate: Chlorination and Bromination of alkanes.
[5 marks]Explain Haworth synthesis of Naphthalene. Q. 6 (a) Write detail notes on molecular orbital theory.
[6 marks]Enlist reactive intermediates of carbon. Write a note on carbocation.
[5 marks]How will you distinguish between primary, secondary and tertiary alcohol?
[5 marks]Write a note on following. 1. Intramolecular and intermolecular forces, 2. SP hybridization.
[6 marks]Explain different types of bonds giving examples.
[6 marks]Explain bonding and antibonding orbitals.
[6 marks]