Zadanie 2d
Wzorowane na: Chemistry HL Paper 2, May 2024, TZ1, pytanie 2(d). Treść, dane i kontekst są zmienione; sprawdzane umiejętności, format i punktacja jak w oryginale.
Darmowe konto pozwoli wrócić do niego później.
Polecenie
Methanol and butan-1-ol are members of the same homologous series.
(i) Name the class of compound and the functional group that characterize this series.
(ii) State the strongest intermolecular force between molecules of either alcohol.
(iii) Predict one type of intermolecular force that would be stronger in pentan-1-ol than in butan-1-ol.
Sprawdź rozwiązanieUkryj rozwiązanieKlucz i punktacja
Odpowiedź z klucza
(i) alcohol ✔
hydroxyl ✔
(ii) hydrogen bonding ✔
(iii) London / dispersion forces ✔
Schemat punktowania
(i) [1] for each name; "hydroxy" is acceptable, "hydroxide" is not; if both names are right but swapped, award [1] in total. Formulas such as R-OH are ignored. (ii) [1]. (iii) [1]; accept instantaneous dipole-induced dipole interactions; the general term "van der Waals" is too vague.