Covalent bond is when there is relatively less difference in electronegativity of constituent atoms. On the other hand, ionic bond is formed when there is large difference in electronegativity of constituent atoms.
In present case, electronegativity of F is 3.98, electronegativity of C is 2.55, electronegativity of tin is 1.96 and electronegativity of potassium is 0.82.
Here, since the electronegativity difference is minimum in case of C-F, so covalent bond will be preferentially with carbon.
It must also be noted that neon is an inert gas, hence it will not form bond with F.
D ----> Evaporates
Volatile substances evoporates easily :)
Density=mass/volume
density=2/8
density=0.25g/ml
Explanation:
The given data is as follows.
= 286 kJ =
= 286000 J
,
Hence, formula to calculate entropy change of the reaction is as follows.
=
=
= 163.5 J/K
Therefore, formula to calculate electric work energy required is as follows.
=
= 237.277 kJ
Thus, we can conclude that the electrical work required for given situation is 237.277 kJ.
Answer is A have a crystal structure.