Zadanie 40
Wzorowane na: Chemistry HL Paper 1, May 2024, TZ1, pytanie 40. Treść, dane i kontekst są zmienione; sprawdzane umiejętności, format i punktacja jak w oryginale.
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Polecenie
A signal in the 1H NMR spectrum of an organic compound is a triplet. What does the splitting of this signal show?
A. There are three hydrogen atoms in the chemical environment that gives the signal.
B. There are three different chemical environments for hydrogen atoms in the molecule.
C. There are two hydrogen atoms on the atom(s) adjacent to the hydrogen atoms that give the signal.
D. The hydrogen atoms that give the signal are bonded to a carbon atom next to an oxygen atom.
Sprawdź rozwiązanieUkryj rozwiązanieKlucz i punktacja
Odpowiedź z klucza
C ✔
«a signal split into n + 1 peaks shows n hydrogen atoms on the adjacent atom(s), so a triplet means two neighbouring hydrogen atoms; the number of hydrogen atoms in an environment comes from the integration trace and the number of environments from the number of signals»
Schemat punktowania
One mark for the correct option.