Write the structures of the following compounds.
- Di-sec.butyl ketone
Write the structures of the products of the following reactions :
Arrange the following compounds in increasing order of their boiling points.
CH3CHO, CH3CH2OH, CH3OCH3, CH3CH2CH3
CH3CH2CH3 < CH3OCH3 < CH3CHO < CH3CH2OH
Arrange the following compounds in increasing order of their reactivity in nucleophilic addition reactions.
- Ethanal, Propanal, Propanone, Butanone.
- Benzaldehyde, p-Tolualdehyde, p – Nitrobenzaldehyde, Acetophenone.
Hint: Consider steric effect and electronic effect.
- Butanone < Propanone < Propanal < Ethanal
- Acetophenone < p-Tolualdehyde, Benzaldehyde < p-Nitrobenzaldehyde
Predict the products of the following reactions :
Give the IUPAC names of the following compounds :
- 3-Phenylpropanoic acid
- 3-Methylbut-2-enoic acid
- 2-Methylcyclopentanecarboxylic acid
- 2,4,6-Trinitrobenzoic acid
Show how each of the following compounds can be converted to benzoic acid.
- Phenylethene (Styrene)
Which acid of each pair shown here would you expect to be stronger ?
(i) CH3CO2H or CH2FCO2H
(ii) CH2FCO2H or CH2ClCO2H
(iii) CH2FCH2CH2CO2H or CH3CHFCH2CO2H
(i) H2CFCOOH will be stronger of the two. The presence of electronegative F atom at the α-C causes electron withdrawal from the COOH and facilitates the release of H+.
(ii) CH2FCO2H is a stronger acid for the same reason as stated above. F is more electronegative than Cl, so it withdraws electrons from the carboxyl group to a greater extent.
(iii) CH3CHFCH2COOH is stronger. Although both the givenacidshaveFatomin them, it is the proximity of F in CH3CHFCH2COOH to the COOH group which makes it more acidic.