Organic chemistry: Which C5H10 is most stable? Which one is named 3-methyl-1-but

Question

Organic chemistry: Which C5H10 is most stable? Which one is named 3-methyl-1-butene? Which two compounds add Br2 to form 2 steroisomers? Which one adds H+ to form the most stable carbocation? Addition of Br2 (excess) to which compound forms a product where 1H NMR shows only triplet and quartet?
lhon of Bra (ex to un ich Compound forms a product where 'H NMR shows only triplet and quartet? 2 Which C5 Huo is most stable 3 which one is named 3-methyl-l-butane 4 Which two compounds add Bra to form a Stereoisomers ble form the Carbocation CH3 el (CHS CHCH ECH2

Explanation / Answer

1. Most stable molecule is option c) because it is a linear molecule. It does not have any steric hindrance.

2. No compound is called 3-methyl-1-butene. the right name of option e). will be 3-dimethyl-1-butene.

3. The one who can form 2 steroisomers will be option b) Because it Br2 can remove the protons and form the E compound ot the Z compound (alquene)

4.Most stabel ccarbocation wil ve option a) or option b) because it is an secondary carbon and stability goes on in quaternary carbocation>tertiary carbocation>secondary carbocation>primary carbocation.

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