Rank the following free radicals in order to decreasing stability (most stable first).
Allylic>methyl>primary>secondary>tertiary>vinylic.
Allylic>tertiary>secondary>primary>methyl>vinylic.
Vinylic>methyl>primary>secondary>tertiary>allylic.
Tertiary>secondary>primary>allylic>vinylic>methyl.
Ozonolysis (O3 in CH2Cl2) of compound A under reducing conditions (Zn /acetic acid) gives formaldehyde, 2-butanone, and compound B. Catalytic hydrogenation (H2/Pd) of A gives 2,7-dimethylnonane. What is a possible name for compound A?
2,7-Dimethyl-1,7-nonadiene.
2,7-Dimethyl-2,8-nonadiene.
2,7-Dimethyl-1,8-nonadiene.
2,7-Dimethyl-1,6-nonadiene.
Supply the correct words to complete this sentence: Electron-withdrawing groups such as nitro ... the basicity of anilines, especially when substituted ... .
Increase ; ortho or para.
Decrease ; meta.
Increase ; meta.
Decrease; ortho or para.
The bond dissociation energy is the amount of energy required to break a bond is:
So as to produce the more stable pair of ions.
Via hydrogenation.
Heterolytically.
Homolytically.
Consider the SN1 reaction of tert-butyl chloride with iodide ion:
(CH3)3C-Cl + I- → (CH3)3C-I + Cl-.
Decrease.
Double.
Increase 4 times.
Remain the same.
