1) A solution of KOH hydrolyses CH3CHClCH2CH3 and CH3CH2CH2CH2Cl. Which one of these is more easily hydrolysed?
2)Give the IUPAC name of the following compound :
3)Write the IUPAC name of the following compound : (CH3)3 CCH2Br
4)Write the IUPAC name of the following compound : (CH3)3 CCH2Br
5)Write the IUPAC name of the following compound
6)What happens when bromine attacks
CH2 = CH – CH2 – C ≡ CH
7)Write the IUPAC name of the following
8)In the following pair of compounds, which will react faster by SN1 mechanism and why?
9)Predict the order of reactivity of four isomeric bromobutanes in SN1 reaction.
10)Draw the structure of major monohalogen product in the following reaction
11)Give a chemical test to distinguish between C2H5Br and C6H5Br.
1)Which one in the following pairs of substances undergoes SN2 substitution reaction faster and why?
2)Which one in the following pairs undergoes SN1 substitution reaction faster and why? How are the following conversions carried out?
(i) Benzyl chloride to benzyl alcohol,
(ii) Methyl magnesium bromide to 2-methyl- propan-2-ol.
3)Complete the following reaction equations
Haloalkanes undergo nucleophilic substitution whereas haloarenes undergo electrophilic substitution. Explain.
4)Chlorobenzene is extremely less reactive towards a nucleophilic substitution reaction. Give two reasons for the same.
5)Account for the following:
(i) The C – Cl bond length in chlorobenzene is shorter than that in CH3 – Cl.
(ii) Chloroform is stored in closed dark brown bottles.
6)Draw the structure of major monohalo product in each of the following reactions :
7)Write the equations for the preparation of 1-bromobutane from :
(i) 1-butanol (ii) but-l-ene
8)Which compound in each of the following pairs will react faster in SN2 reaction with —OH?
(i) CH3Br or CH3I (ii) (CH3)3 CCl or CH3Cl
9)How will you carry out the following conversions :
(i) 2-Bromopropane to 1-bromopropane
(ii) Benzene to p-chloronitrobenzene
10)How would you differentiate between S<subN1 and SN2 mechanisms of substitution reactions? Give one example of each.
- a) Draw the structures of major monohalo products in each of the following reactions :(b) Which halogen compound in each of the following pairs will react faster in SN2 reaction :
(i) CH3Br or CH3I
(ii) (CH3)3C – Cl or CH3– Cl