Which of the following is correctly ranked in order of increasing bond polarity? o-o < o-f cl-s < cl-br al-o < p-o h-h < n-n b-f < c-f f-o < o-o li-f < c-o

O-O<O-F

option 1 is correct.

Explanation: The bond polarity can be explained on the basis electronegative difference between the atoms.

Greater the electronegativity difference between the two atoms in a bond greater is the polarity of the bond.

Electronegativity difference of a bond between two atoms =EN of atom having higher electronegativity- EN of atom having lower electronegativity

Likewise we can calculate the electronegativity difference for the following bonds and estimate there bond polarities.

1.EN[O-O]=EN(O)-EN(O)=(3.44)-(3.44)=0

EN[O-F]=EN(F)-EN(O)=(3.98)-(3.44)=0.54

So the bond polarity of O-F is more than O-O as it has more electronegativity difference. These two species are correctly arranged as O-O<O-F

2.EN[Cl-S]=EN(S)-EN(Cl)=(3.16)-(2.58)=0.58

EN[Cl-Br]=EN(Cl)-EN(Br)=(3.16)-(2.96)=0.20

So the bond polarity of Cl-S is more than Cl-Br as it has more electronegativity difference. These two species are incorrectly arranged as Cl-S>Cl-Br.

3. EN[Al-O]=EN(O)-EN(Al)=(3.44)-(1.61)=1.83

EN[P-O]=EN(O)-EN(P)=(3.44)-(2.19)=1.25

So the bond polarity of Al-O is more than P-O as it has more electronegativity difference. These two species are incorrectly arranged as Al-O>P-O.

4.EN[H-H]=EN(H)-EN(H)=(2.2)-(2.2)=0

EN[N-N]=EN(H)-EN(N)=(3.04)-(3.04)=0

The electronegativity difference for both the bonds is 0 hence both the bonds would not have any polarity. Hence the mentioned order is incorrect.  

5. EN[B--]=EN(F)-EN(B)=(3.98)-(2.04)=1.94

EN[C-F]=EN(F)-EN(C)=(3.98)-(2.55)=1.43

So the bond polarity of B-- is more than C-F as it has more electronegativity difference. These two species are incorrectly arranged as B-->C-F

6. EN[Li-F]=EN(F)-EN(Li)=(3.98)-(0.98)=3.0

EN[C-O]=EN(O)-EN(C)=(3.44)-(2.55)=0.89.

So the bond polarity of Li-F is more than C-O as it has more electronegativity difference. These two species are incorrectly arranged as Li-F>C-O

7. EN[F-O]=EN(F)-EN(O)=(3.98)-(3.44)=0.54

EN[O-O]=EN(O)-EN(O)=(3.44)-(3.44)=0

So the bond polarity of F-O is more than O-O as it has more

electronegativity difference. So it is incorrectly arranged.

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .

the food using pesticides in the future will harm you by giving you diseases like cancer or something since they have things that we should not eat in it like chemicals or pesticides. that is why organic food is more expensive because they take the time to make it right and healthy for you to eat.

explanation: