
Основания 8 класс
Authored by Минугул Тухватулина
Chemistry
8th Grade
Used 3+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Что представляют собой основания?
Простые вещества
Соли
Соединения неметаллов
Сложные вещества, содержащие катион металла и OH⁻
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какие основания называют щёлочами?
Те, что реагируют с металлами
Те, что имеют кислую среду
Те, что нерастворимы в воде
Те, что растворимы в воде
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Пример щёлочи:
HCl
Cu(OH)₂
CO₂
NaOH
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой цвет принимает лакмус в растворе щёлочи?
Красный
Зелёный
Фиолетовый
Синий
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Фенолфталеин в щелочной среде становится:
Жёлтым
Бесцветным
Синим
Малиновым
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой индикатор в щёлочи окрашивается в жёлтый цвет?
Лакмус
Фенолфталеин
Универсальный индикатор
Метилоранж
7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Какая среда характерна для щёлочей?
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