January 2020 NY Regents Chemistry Exam
40 The bond between which two atoms is most polar? (1) C–O
(2) F–F (3) H–O
Solution:The polarity of the bond is based on the electronegativity difference. Electronegativity values can be found in Table S on the Reference Table. All we need to do is to find electronegativity value for each element holding a bond. Then, subtract the bigger number from the smaller number to find electronegativity difference. The pair that has the largest electronegativity difference represents the most polar bond.
Prepare for the Chemistry Regents Exam: HERE
Contact us for chemistry tutoring: HERE