NEET2019ChemistryCoordination CompoundsActual
Which of the following species is not stable?
Options
- AS i F 6 2 -
- BG e C l 6 2 -
- CS n O H 6 2 -
- DS i C l 6 2 -
Correct answer
D. S i C l 6 2 -
Step-by-step solution
[ S i C l 6 ] - 2 is unstable due to steric hinderance. Steric hindrance is when the large size of groups within a molecule prevents chemical reactions which can take place in related molecules with smaller groups. Steric hindrance is also a reason for protection of some groups from unwanted chemical modifications.