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Elementi I jedinjenja VIA I VIIA grupe PSE

Create a vibrant and educational illustration showcasing elements from the VIA and VIIA groups of the periodic table, featuring symbols like Po, Se, O, Cl, and I, with visual representations of chemical reactions and lab equipment, emphasizing the beauty of chemistry.

Test Your Knowledge of VIA and VIIA Group Elements

Welcome to our engaging quiz designed to test your knowledge on the elements and compounds of the VIA and VIIA groups of the periodic table. Whether you're a student, teacher, or chemistry enthusiast, this quiz offers a fun way to refresh your understanding of these important chemical groups.

Join us to explore:

  • Fascinating facts about elements
  • Reactions and their products
  • Properties of various compounds
10 Questions2 MinutesCreated by ExploringElements42
Ime I prezime
Elementi VIA grupe su:
Po, Se, O, Te, S
O, S, Se, Te, At
O, Te, Cl, Po, Se
F, Cl, Br, I, At
U reakciji K2Cr2O7 I H2O2 nastaje jedinjenje CrO5 koje je nestabilno jedinjenje pa se u epruvetu dodaje:
Etar
Voda
So
Vodonik-peroksid
U reakciji FeSO4 + 2NaOH nastaje talog zelene boje koji potiĝe od:
Fe(OH)2
Fe(OH)3
Na2SO4
Fe2O3
U reakciji 5H2SO3 + 2KMnO4→ K2SO4 + 2MnSO4 + 2H2SO4 + 3H2O
  H2SO3 je:
Redukciono sredstvo
Oksidaciono sredstvo
U reakciji H2SO4 + NaCl → HCl + NaHSO4 dolazi do izdvajanja mehurića gasa. Koji gas je u pitanju?
HCl
O2
H2SO4
CO2
Fosfatna kiselina je u odnosu na jodidnu kiselinu:
Slabija
Jaĝa
Jod se rastvara u:
U vodenom rastvoru KI
Vodi
Rastvor kalijum-trijodid je:
Tamno crvene boje
Tamno plave boje
Zelene boje
Crvene boje
U reakciji kalijum-permanganata sa vodonik-peroksidom u kiseloj sredini dolazi do izdvajanja mehurića gasa. O kom gasu je reĝ? (napisati formulu)
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