Zadanie 13
Wzorowane na: Chemistry SL Paper 1, May 2023, TZ1, pytanie 13. Treść, dane i kontekst są zmienione; sprawdzane umiejętności, format i punktacja jak w oryginale.
Darmowe konto pozwoli wrócić do niego później.
Polecenie
Each of the two bonds between oxygen atoms in an ozone molecule, O3, has a bond order of 1.5, whereas the bond between the oxygen atoms in an oxygen molecule, O2, has a bond order of 2.
Which allotrope has the longer bond between oxygen atoms, and which is dissociated by ultraviolet radiation of the longer wavelength?
A. Longer bond: ozone; longer wavelength: ozone
B. Longer bond: oxygen; longer wavelength: oxygen
C. Longer bond: oxygen; longer wavelength: ozone
D. Longer bond: ozone; longer wavelength: oxygen
Sprawdź rozwiązanieUkryj rozwiązanieKlucz i punktacja
Odpowiedź z klucza
A ✔
«the lower the bond order, the longer and weaker the bond: bond order 1.5 in O3 against 2 in O2 gives the longer bond in ozone; a weaker bond is broken by a photon of lower energy, that is lower frequency and longer wavelength, so ozone is dissociated by the longer wavelength»
Schemat punktowania
One mark for the correct option.