Викторина кремний
Authored by Дильфуза Халходжаева
Chemistry
9th Grade
Used 1+ times
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37 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой химический элемент обозначается символом Si?
Кислород
Углерод
Азот
Кремний
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В какой группе и периоде находится кремний в Периодической системе?
IIA, 2 период
IVA, 3 период
IIIA, 3 период
IVA, 4 период
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Сколько валентных электронов содержится на внешнем слое атома кремния?
5
3
2
4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какую степень окисления проявляет кремний в соединениях с металлами?
0
+2
-4
+4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой оксид кремния распространен в природе?
SiO
SiO2
Si2O3
SiO3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой цвет имеет кремний в своем простом состоянии?
Чёрно-серый
Прозрачный
Синий
Белый
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой процесс используется для получения кремния?
Электролиз
Восстановление оксида
Сублимация
Дистилляция
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