Test recapitulativ
Authored by Constantin Ichim
Chemistry
12th Grade
Used 2+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Baza conjugată a acidului clorhidric, HCl, este
HCl2
H+
Cl-
Cl2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dintre acizii enumerați, acidul tare este ...
CH3COOH
HCN
H2SO4
H2CO3
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In combinația complexă [Cu(NH3)4] (OH)2, numărul de coordinare este ....
2
4
3
1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
În reactivul Tollens, combinație complexă întâlnită în chimia organică, ionul metalic central este ,,,
Cu
Fe
Ag
Co
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Are caracter amfoter, este amfolit acido bazic ....
S2-
HCO3-
H2SO4
NO3-
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Conform teoriei protolitice, un acid este substanța care ..
acceptă electroni
cedează protoni
acceptă protoni
cedează electroni
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pentru amoniac NH3, acidul conjugat este ...
NH2
NH4+
HCN
NH4-
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