Which pair of elements can form multiple bond with itself and oxygen?
Considering the elements F, Cl, O and N, the correct order of their chemical reactivity in terms of oxidizing property is: (a) F > Cl > O > N (b) F > O > Cl > N (c) Cl > F > O > N (d) O > F > N > Cl
Arrange F, Cl, O, and N in the decreasing order of electronegativity.