Rank the following substrates in order of decreasing reactivity in an SN2 reaction (most reactive first, least reactive last).
(I) (CH3)3C-Br,
(II) CH3Br,
(III) CH3CH2Cl,
(IV) CH3CH2Br.
I > II > III > IV.
II > IV > III > I.
IV > I > II > III.
IV > III > II > I.
What is the sequence of reagents that will accomplish the synthesis of 4-methylphenylamine from benzene?
CH3Cl, AlCl3; HNO3, H2SO4; Fe, HCl; NaOH.
CH3Cl, AlCl3; HNO3, H2SO4; H2.
HNO3, H2SO4; CH3Cl, AlCl3; Fe, HCl; NaOH.
HNO3, H2SO4; Fe, HCl; NaOH; CH3Cl, AlCl3.
The predominant type of reaction undergone by aldehydes is:
Electrophilic substution.
Nucleophlic addition.
Free radical substution.
Electrophilic addition.
The predominant type of reaction undergone by ketones is:
According to the following energy profile, the rate of reaction from A to B is determined by:
The energy of A only.
The energy of B only.
The energy difference between C and A.
The energy difference between B and A.
