Someone just cleaned the bathroom at work. you walk into
the bathroom stall and notice a strong chemical smell. you
notify your supervisor and immediately take a look at the
sds. which section will you review to determine the routes
of exposure and symptoms of exposure?
first aid measures
toxicological infomation
stabililty and reactivity
fire-fighting measures

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.