Which of the following are correct?
Carbocations are stabilized by +I and +R effect.
(i) CH3—O—CH2+ is more stable than CH3—CH2+ +I effect of CH3O- is more than that of CH3-.
(iii) CH2=CH—CH2+ is more stable than CH3—CH2—CH2+ because former is stabilized by +R effect whereas latter is stabilized by +I effect and magnitude of +R effect is greater than that of +I effect. The resonating structures are as below-
CH2=CH—CH2+ <----→ +CH2-CH=CH2
Therefore, (i) and (iii) are correct statements.