Question

what product is formed when ch3ch2ch2ch2 - sh is oxidized?
ch3ch2ch2ch
ch3ch2ch2ch2 - s - s - ch2ch2ch2ch3
ch3ch2ch2 - c - s - oh
ch3ch2ch2ch2 - s - ch2ch2ch2ch3
ch3ch2ch2ch2 - s

Explanation:

Step1: Recall oxidation of thiols

Thiols ($R - SH$) are oxidized to disulfides ($R - S - S - R$) in the presence of mild oxidizing agents.
The given thiol is $CH_3CH_2CH_2CH_2 - SH$. When it is oxidized, two thiol molecules react.
The reaction is $2CH_3CH_2CH_2CH_2 - SH+[O]
ightarrow CH_3CH_2CH_2CH_2 - S - S - CH_2CH_2CH_2CH_3 + H_2O$

Answer:

$CH_3CH_2CH_2CH_2 - S - S - CH_2CH_2CH_2CH_3$ (the second option in the multiple - choice list)