
10 test
Authored by Ылвлвщвивл Взвивдвтввт
Professional Development
10th Grade
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
С какими из указанных веществ реагирует хлор?
Ca
NaO2
Fe(OH)3
F
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какие из указанных реакций являются качественными реакциями на сульфат-ион?
SO3+CA(OH)2=CaSO4+H20
H2SO4+BaCl2=BaSO4↓+2HCl
5KNO2+2KMnO4+3H2SO4=5KNO3+2MnSO4+K2SO4+3H2O
CuSO4+Ni=NiSO4+Cu
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
С какими из указанных веществ реагирует Fe(OH)2?
раствор КОН
раствор NaCl
раствор HCl
раствор NaOH
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какие из указанных металлов являются менее активными, чем железо?
Na
Sn
Ca
Ba
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какие из указанных пар веществ можно использовать для получения оксида серы (IV)?
CuSO4, NaOH
S,O2
Cu, H2 SO4(разб.)
Mg, H2 SO4(разб.)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
При помощи, каких веществ можно обнаружить в растворе ионы Fe+3?
K3[Fe(CN)6]
K4[Fe(CN)6]
H2O
H2SO4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какую конфигурацию внешнего электрического слоя имеют элементы главной подгруппы VI группы?
ns2 np5
ns2 np4
C. (n-1)d5ns1
D. ns2 np6
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