Soluții de acizi și baze, pH.
Testul se adresează elevilor de clasa a IX-a și candidaților la bacalaureat.
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Question 1 of 10
1. Question
1 pointsEste corectă afirmaţia referitoare la hidroxidul de sodiu:Correct
Incorrect
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Question 2 of 10
2. Question
1 pointsO soluţie de acid clorhidric M are:Correct
Incorrect
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Question 3 of 10
3. Question
1 pointsÎntr-o probă de suc gastric cu pH=2, mediul esteCorrect
Incorrect
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Question 4 of 10
4. Question
1 pointsReprezintă ecuaţia reacţiei chimice care are loc între un acid tare şi o bazǎ slabǎCorrect
Incorrect
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Question 5 of 10
5. Question
1 pointsBaza conjugatǎ a acidului cianhidric este:Correct
Incorrect
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Question 6 of 10
6. Question
1 pointsFenolftaleina, în mediu bazic se coloreazǎ în:Correct
Incorrect
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Question 7 of 10
7. Question
1 pointsCel mai cunoscut amfolit acido-bazic esteCorrect
Incorrect
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Question 8 of 10
8. Question
1 pointsPrecizaţi douǎ specii chimice prezente în soluţia apoasă de acid clorhidricCorrect
Incorrect
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Question 9 of 10
9. Question
1 pointsÎn mediu acid, turnesolul se coloreazǎ:Correct
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Question 10 of 10
10. Question
1 pointsHidroxidul de sodiu esteCorrect
Incorrect
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Examples of questions from "Soluții de acizi și baze, pH."
- Baza conjugatǎ a acidului cianhidric este:
- Hidroxidul de sodiu este
- Cel mai cunoscut amfolit acido-bazic este