
Reactii acido-bazice
Authored by Lacramioara Rusu
Chemistry
12th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
La adăugarea a 2-3 picături de turnesol în soluția apoasă a NaOH, aceasta se colorează în
albastru
galben
portocaliu
rosu
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce culoare va avea o soluție de HCl după adăugarea a 2-3 picături de turnesol?
rosu
portocaliu
galben
albastru
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La adăugarea a 2-3 picături de turnesol în soluția apoasă a Na2CO3, aceasta se colorează în
albastru
galben
portocaliu
rosu
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce culoare va avea o soluție de NaOH după adăugarea a 2-3 picături de fenolftaleină?
verde
incolor
galben
roz
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Referitor la substanța (H2O), în stare pură și condiții standard:
are pH = 7
conduce curentul electric
formează specia (H3O+) prin cedarea unui proton
formează specia (HO-) prin acceptarea unui proton
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce culoare va avea o soluție de NH3 după adăugarea a 2-3 picături de fenolftaleină?
incolor
galben
verde
roz
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La adăugarea a 2-3 picături de fenolftaleină în soluția apoasă a KOH, aceasta se colorează în
incolor
galben
albastru
roz
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