How is redshift different from blueshift?

Red light wavelengths tend to be more stretched out the further you are from the object. Blue light wavelengths tend to be closer together. Blueshift light tends to be emitted from objects that are moving closer. The further away, the more red the lights spectrum has.

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.