NTA Abhyas NEET2020ChemistryChemical Bonding and Molecular StructurePractice
Which of the following is correct?
Options
- AThe number of electrons present in the valence shell of S in S F 6 is 12
- BThe rates of reactions involving ionic compounds are very slow.
- CAccording to VSEPR theory S n C l 2 is a linear molecule
- DThe correct order of ability to form ionic compounds among N a + , M g 2 + and A l 3 + is A l 3 + > M g 2 + >
Correct answer
A. The number of electrons present in the valence shell of S in S F 6 is 12
Step-by-step solution
In S F 6 molecule, there are six bond pairs thus sulphur has 12 valence electrons. Rest other statements are incorrect as ionic reactions are fast, S n C l 2 is bent and the ability to formed ionic compound is A l 3 + < M g 2 + < N a + .