Elementi I jedinjenja VIA I VIIA grupe PSE

A colorful abstract representation of chemical elements and reactions, emphasizing groups VIA and VIIA of the periodic table, with symbols and chemical equations in a visually engaging design.

Explore the Chemistry of Group VIA and VIIA Elements

Test your knowledge on the intriguing properties and reactions of elements from the VIA and VIIA groups of the periodic table. This quiz will challenge your understanding of various chemical concepts and reactions related to these groups.

  • Multiple choice questions
  • Focus on elements and their compounds
  • Understand chemical interactions and reactions
11 Questions3 MinutesCreated by ReactingAtom23
Ime I prezime
Elementi VIIA grupe su:
F, Cl, Br, I, At
I, Se, F, Te, S
F, Br, Cl, I, Se
F, Cl, Br, Te, At
Ljubiĝasti rastvor KMnO4 u kiseloj sredini prelazi u bezbojan zbog:
Redukcije Mn+7 u Mn+2
Redukcije Mn+7 u Mn+4
Oksidacije Mn+7 u Mn+2
Redukcije Mn+7 u Mn+6
U višku H2O2 dolazi do redukcije CrO5 u:
Cr3+ jon
Cr6+ jon
Cr4+ jon
Cr2+ jon
U reakciji 2Fe(OH)2 + H2O2 → 2Fe(OH)3  nastaje:
Talog crvene boje
Talog zelene boje
Rastvor crvene boje
Talog zelene boje
U reakciji KMnO4 I H2SO3 sulfitna kiselina je:
Redukciono sredstvo
Oksidaciono sredstvo
Reakcija 3NaI + H3PO4 → 3HI↑ + Na3POje moguća jer je:
Fosfatna kiselina slabija od jodidne ali je teže isparljiva
Fosfatna kiselina jaĝa od jodidne I lakše je isparljiva
Fosfatna kiselina slabija od jodidneali je lakše isparljiva
Jodidna kiselina je slabija od fosfatne
U reakciji 3NaI + H3PO4 → 3HI + Na3POdolazi do izdvajanja mehurića koji potiĝu od:
HI
Na3PO4
O2
CO2
Jod se dobro rastvara u vodenom rastvoru KI zbog:
Jakih dipol-indukovani dipol interakcija
Nedovoljno jakih dipol-dipol interakcija
Jakih jon-dipol interakcija
Slabih jon-dipol interakcija
Usled delovanja sulfatne kiseline na šećer dobija se talog koji potiĝe od (upisati formulom):
Email:
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