Why have most companies started to extract lithium from brine water rather than mineral ore? (1 point) The process is less time-consuming.

The ore deposits have been depleted.

The process is less expensive.

The quality of lithium is higher.

- lead + phosphoric acid = hydrogen + lead(ii) phosphate

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.