BIOCHEMISTRY
POLAR AND NONPOLAR MOLECULES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
1
|
|
|
2
|
|
|
3
|
|
|
0
|
Detailed explanation-1: -The 3 unpaired electrons of the 3p subshell form a bond with 3 F (fluorine) atoms to make 3 P-F bonds. Therefore, there is 1 lone pair of electrons in the structure of PF3 which is consequently option b.
Detailed explanation-2: -PF3 lewis structure is made up of one phosphorous (P) atom located at the central position and three fluorine (F) atoms that spread around the central atom. There are a total of 10 lone pairs and three bonded pairs present in the lewis dot structure of PF3.
Detailed explanation-3: -There is one set of lone pairs on P.
Detailed explanation-4: -Draw a Lewis structure for the molecule: PF3 has 26 valence electrons. Determine the total number of electron groups around the central atom: There are four electron groups on P.
Detailed explanation-5: -Phosphorus is the central atom in PBr3, and three bromine atoms form bonds with it. There is one lone pair of electrons.