
Caracteristica generală a nemetalelor
Authored by Stela Burcovschi
Chemistry
10th Grade
Used 11+ times

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9 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Sunt elemente nemetalice...
Sulf
Siliciu
Seleniu
Staniu
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Una dintre valențe este IV.
Sulf
Carbon
Fosfor
Siliciu
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Molecula substanței simple este biatomică.
Oxigen
Carbon
Sulf
Brom
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Între atomi se stabilește o legătură simplă σ.
Clor
Oxigen
Brom
Carbon
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Are mai multe modificații alotropice.
Oxigenul
Fosforul
Carbonul
Clorul
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Formează oxid superior cu compoziția EO3.
Sulf
Carbon
Aluminiu
Telur
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
În compusul hidrogenat manifestă gradul de oxidare „-3”.
Azotul
Fosforul
Sulful
Arseniul
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