ОВР и неорганика
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
Julia Vishnevskaya
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Определите свойство, которое может проявлять атом хрома в составе частицы [Cr(OH)6]3-
только окислитель
только восстановитель
и окислитель, и восстановитель
не проявляет окислительно-восстановительных свойств
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
CuCl2 + KI → ...
CuI2 + KCl
CuI2 + KCl + I2
CuI + KCl + I2
CuI + KCl
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите признак реакции, протекающей между дихроматом натрия и гидроксидом натрия
изменение окраски раствора на зеленый
изменение окраски раствора на желтый
изменение окраски раствора на оранжевый
выпадение темно-зеленого осадка
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
KI + H2SO4 (конц) → ...
K2SO4 + I2 + H2O + H2S
K2SO4 + I2 + H2O + SO2
K2SO4 + I2 + H2O + S
K2SO4 + HI
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите вещества, между которыми возможно протекание реакции
оксид кремния(IV) и вода
карбонат бария и серная кислота
сульфид меди(II) и соляная кислота
гидроксид магния и сульфат меди(II)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
AlCl3 + K2CO3 р-р →
Al2(CO3)3 + KCl
Al(OH)3 + KCl + CO2
Al4C3 + KClO3
реакция не идет
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите вещество, термическое разложение которого является окислительно-восстановительным процессом
Ca(HCO3)2
KNO3
NH4Cl
(CuOH)2CO3
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