Zadanie 9
Wzorowane na: Chemistry SL Paper 1, May 2022, TZ2, pytanie 9. Treść, dane i kontekst są zmienione; sprawdzane umiejętności, format i punktacja jak w oryginale.
Darmowe konto pozwoli wrócić do niego później.
Polecenie
Which statement best describes the bonding between the atoms inside one molecule of ammonia, NH3?
A. Hydrogen bonding between nitrogen and hydrogen atoms
B. Each shared pair of electrons is attracted electrostatically to the nuclei of both bonded atoms
C. Electrostatic attraction between N3− ions and H+ ions
D. London (dispersion) forces and dipole–dipole forces between the atoms
Sprawdź rozwiązanieUkryj rozwiązanieKlucz i punktacja
Odpowiedź z klucza
B ✔
«a covalent bond is the electrostatic attraction between a shared pair of electrons and the positively charged nuclei of both atoms. Hydrogen bonding and London or dipole–dipole forces act between molecules, and ammonia contains no ions»
Schemat punktowania
One mark for the correct option.