
9 класс СРЕЗ
Authored by Жибек Даулетбай
Chemistry
9th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Какой из металлов является самым легким?
Алюминий
Литий
Магний
Кальций
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Какой металл не взаимодействует с водой ни при каких условиях?
Натрий
Железо
Алюминий
Золото
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Какой металл получают путем электролиза расплава оксида алюминия?
Магний
Железо
Алюминий
Цинк
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Что такое пирометаллургия?
Сплавление металлов
Электролиз расплавов металлов
Получение металлов из растворов
Добыча металлов при высоких температурах
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Определите восстановитель в реакции:
Fe + CuSO₄ → FeSO₄ + Cu
Fe
Cu
SO₄
FeSO₄
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
В каком процессе происходит окисление?
Поглощение электронов
Потеря электронов
Увеличение степени окисления
Снижение степени окисления
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Какой из перечисленных сплавов содержит медь и цинк?
Сталь
Латунь
Бронза
Дюралюминий
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