
p-prvky
Authored by barbora vorackova
Chemistry
12th Grade

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27 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
halogeny jsou prvky:
V.A skupiny
VI.A skupiny
VII.A skupiny
VIII.A skupiny
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
mezi halogeny nepatří:
síra
chlor
fluor
jod
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
kolik mají halogeny valenčních elektronů?
6
8
7
9
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
který halogen potkáte v přípravku SAVO?
fluor
chlor
brom
jod
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
která kyselina jednoho halogenu je tak silná, že rozleptá i sklo?
HF
HCl
HBr
HI
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
který halogen není biogenní prvek?
F
Cl
Br
I
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
která rovnice neoznačuje přípravu chloru?
KCl + Br2
MnO2 + HCl
KCl + F2
elektrolýza roztoku NaCl
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