During performing an experiment on neutralization reaction, Ravi took about 100 mL of sodium hydroxide solution and pour
approximately the same amount of concentrated hydrochloric acid to
it.
He observed a very vigorous reaction with evolution of large amount of
heat. When he dipped litmus paper into the solution it turned red. He
was surprised with the result though he had read all the instructions
and precautions given to him by his teacher.
(a) What was the expected result of the experiment?
(b) What went wrong in the experiment performed by Ravi?
(c) Why Ravi observed a very vigorous reaction with evolution of large
amount of heat when he added concentrated hydrochloric acid to
sodium hydroxide?

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.

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.