
ЖУМАТАЙ
Authored by Жуматай Абдуллаев
Chemistry
9th Grade
Used 1+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1 . Аллотропноое видоизменение кислорода
A) азот
B) алмаз
C) графит
D) фтор
E) озон
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. Группа веществ, нерастворимых в воде
A) ВaSO4, Сa3(PO4)2
B) MgCl2, Ba (NO3)2
C) К2SO3, Ca (NO3)2
D) K2SO4, NaNO3
E) СaCl2, AgNO3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3.Гидроксид, имеющий бурую окраску
A) Гидроксид железа (III)
B) Гидроксид алюминия
C) Гидроксид железа (II)
D) Гидроксид цинка
E) Гидроксид калия
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. Число валентных электронов в атоме алюминия
A) 6
B) 3
C) 4
D) 2
E) 1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5. Число неспаренных электронов на наружнем энергетическом уровне у
кремния
A) 2
B) 3
C) 4
D) 5
E) 1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. В сосуд, наполненный водородом внесли горящую лучину, при этом
A) лучина потухла
B) лучина продолжала тлеть
C) ничего не произошло
D) водород сгорел с характерным хлопком
E) лучина ярко вспыхнула
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7. Молярная масса гипохлорида натрия NaClO равна:
A) 7,45 г/ моль
B) 0,745 г/моль
C) 154,8 г/моль
D) 149 г/моль
E) 74,5 г/моль
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