Thiols have structures similar to alcohols except that they contain.

Thiols have structures similar to alcohols except that they contain.

A) sulphur in place of oxygen in the functional group.

B) lithium in place of oxygen in the functional group.

C) more than one carbon.

D) three alcohol groups.

E) nitrogen in place of oxygen in the functional group.

Answer:- A :- There is Sulphur instead of oxygen in the functional group.

Thiols have a typical structure R-SH involving the S-H functional group which comprises of two elements namely sulfur atom bonded to hydrogen. This is similar to alcohols that have a general formula R-OH, an O- H functional whereby there’s oxygen atom bound with hydrogen .

The main difference is that in thiols, there is a sulfur atom instead of an oxygen one. Since alcohols are made up of C-O-H, thiols consist of C – S -. Some examples of simple thiols include:

Methanethiol (CH3SH)

Ethanethiol (C2H5SH)

1-Propanethiol (C3H7SH)

Thiols are more polarizable than alcohols due to the sulfur atom in its thiol group. This enables thiols to take part in reactions such as disulfide bond formation between two thiol groups. Overall, the replacement of sulfur for oxygen is what makes thiols stand out as far structure and reactivity with their alcohol counterparts.