Comment on methods of preparation of alkanes.
[6 marks]Explain 1) Bond energy 2) Lewis acid 3) Vander walls forces 4) Ionic bond 5) Polarity.
[5 marks]Write a note on molecular orbital theory.
[5 marks]Enlist the methods used to determine molecular weight of organic compound. Discuss any two in details.
[6 marks]Write a detailed note on carbocation.
[5 marks]Enlist the reactions of alcohols. Comment on its reaction with metals.
[5 marks]Write a note on Kjehldahl’s method of nitrogen estimation.
[6 marks]Write a note on Oxo process.
[5 marks]Write a note on hydroboration oxidation reaction of alkenes.
[5 marks]Give reason : 1) Acetylene is a linear molecule. 2) Alkyl halides give nucleophilic substitution while aryl halides dont. 3) Addition reactions of alkenes follows Markownikoff,s rule.
[6 marks]Write a note on cycloaddition reactions.
[5 marks]Write a note on crown ethers.
[5 marks]Give the structure of :1) t-butyl ethyl ether 2) iso-pentyl alcohol 3) 3,6- dimethyl-1-octene 4) 4-methyl hept-2-en-5-yn-1-ol 5) 1,3 cyclohexadiene 6) dimethyl acetylene.
[6 marks]What are dienes? Comment on stability of conjugated dienes.
[5 marks]Write a note on Williamson’s synthesis. Q. 6 (a) What are alcohols? Comment on their nomenclature and physical properties.
[6 marks]Write a note on reactions of epoxides.
[5 marks]Comment on resonance and hyper-conjugation.
[5 marks]What are alkynes? Comment on method of preparations of alkynes.
[6 marks]Write a note on sigmatropic reactions
[5 marks]Define 1) Carbene 2) nitrene 3) hybridization 4) electronegativity 5) covalent bond
[5 marks]