State which carbocation is the most stable

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1) Which carbocation is the most stable? a) CH2=CHCH2+ b) CH3CH=CH2+ c) CH3C=CH2(+ sign on top of H2) d) CH3CH2CH3

2) I have a 3-methyl-1-Pentyne compound starting in an only (s) configuration and I'm putting in H2 and Pt. The product of this reaction would be.... a) Only (S) b) Only (R) c) (R) + (S) d) Achiral

3) Same question as previous but instead of putting in H2 and Pt I'm putting in H2 and Lindlar's Catalyst.

Reference no: EM13207239

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