
хим зачет 1 русс
Authored by Daniyar Ermek
Science
9th - 12th Grade
30 Questions
Used 3+ times

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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Выберите пару кислот, у которой константа диссоциации наиболее близка по значению.
A) H₂SO₄ и H₃BO₃
B) HCl и HBr
C) HF и HClO₄
D) HNO₃ и CH₃COOH
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Укажите причину хорошей растворимости аммиака в воде.
A) Из-за молекулярной массы
B) Из-за наличия водородных связей
C) Из-за высокой химической инертности азота
D) Из-за низкой температуры кипения
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Укажите продукты, образующиеся при сжигании аммиака без участия катализатора.
A) N₂ + H₂O
B) N₂ + O₂
C) NO + H₂O
D) N₂ + O₂ + H₂O
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Вариант, у которого в узлах кристаллической решетки находятся отдельные атомы.
A) CaCl₂
B) H₂O
C) NaF
D) SiO₂
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Выберите промышленный способ получения насыщенных углеводородов.
A) Гидратация непредельных углеводородов
B) Пиролиз природного газа
C) Гидрирование непредельных углеводородов
D) Каталитическая перегонка нефти
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Элемент, который является основой всех органических соединений.
A) Азот
B) Водород
C) Кислород
D) Углерод
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Основной компонент стекла.
A) SiH₄
B) SiO₂
C) SiF₄
D) SiC
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