
неорг 2 тема (46-60)
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Others
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University
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Practice Problem
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Easy
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
С каким из указанных веществ взаимодействует сульфид натрия с образованием сульфида свинца (II)?
Pb(OH)2
Pb
Pb(NO3)2
PbO
PbSO4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
С какими из указанных веществ взаимодействует концентрированная HNO3 с образованием NO2
Cu
Ba(OH)2
ZnO
CuSO4
HNO3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какие из указанных реакций являются качественными реакциями на ион аммония NH4?
NH4NO2=N2+2H2O
4NH3+2O2=2N2+6H2O
2NH4Cl+Ca(OH)2=2NH3+2H2O+CaCl2
2NH3+H3SO4=(NH4)2SO4
4NH3+3O2=2N2+6H2O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
С каким из указанных пар веществ можно использовать для получения оксида азота (IV)?
Hg
Al2O3
BaSO4
Cu
Ag
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какие из указанных пар веществ можно использовать для получения оксида азота(IV)?
NO, O2
Zn, HNO3
HN3,O2
N2,O2
Al, Pb
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В каком соединении степень окисления атома азота равна +3?
Cu(NO3)2
NH4CI
NO2
Ca(NO2)2
CaH2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В каких из указанных реакций сера играет роль окислителя?
S + CI2 = SCI2
2Li + S = Li2S
S+O2=SO2
S+3F2=SF6
SO3+Ca(OH)2=CaSO4+H20
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