
lesson 4(chapter 1)
Quiz by hamada amin
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Consider the following reduction reactions:
The equation showing an appropriate reducing agent for the reduction of Fe2+ in FeO(s) is .

Substance X undergoes a reduction process, forming FeO .Substance Y undergoes an oxidation process, forming Fe2O3.Substance Z undergoes a reduction process, forming Fe3O4.Which row from the following table correctly represents X, Y, and Z?

Preparing magnetic iron oxide from iron(II) sulfate includes .
Magnetic iron oxide can be obtained from iron(II) oxide as in the figure below. So, compound Y can be .

A reduction reaction occurs to iron(III) oxide, forming carbon dioxide gas and a solid (X) that reacts with hot concentrated sulfuric acid, producing (Y) and (Z) salts and water vapor. From these data, (X), (Y), and (Z) are .......................................... respectively.
Magnetic iron oxide can be obtained from iron(III) chloride using the following sequence: .
When reacting iron with chlorine gas, ..................is produced because chlorine gas is ................... agent.
The correct order of processes that are needed to obtain iron II sulfide from iron II sulfate is.................... , ......................... , . and .................... .
Which of the following cannot be differentiated using iron filings?
On the addition of iron filings to a concentrated solution of sulfuric acid, along with hydronium and hydroxide ions, the ions in the resultant solution are .......................... .
Iron(III) hydroxide is converted into magnetic iron oxide by the thermal decomposition reaction that forms a red powder compound, then a reduction reaction occurs. The oxidation number of the cation of the red powder is .
All of the following reactions will cause a decrease in mass due to several reasons except .
All of the following reactions are used to obtain the iron oxide that reacts with dilute hydrochloric acid forming ferrous salt and water except for .................................. .
All of the following compounds produce a mixture of two gases during their thermal decomposition except for ......................................... .
It is known that iron(III) oxide is used in preparing iron(III) sulfate. So, the numbers of iron, iron-bonded oxygen, and sulfuric acid moles that are used to prepare 3 moles of iron(III) sulfate are respectively ........................ .
When iron(II) sulfate is heated strongly, the solid product formed can be reduced by .................... ,forming ................... .
A strong magnet is placed next to a powder mixture of NaCl , Al2O3 ,Fe3O4 ,SiO2 ,and CaCO3.The compound that will separate from the mixture is ................... .
When dilute sulphuric acid added to test tube contains a mixture of iron (II) oxide and iron (III) oxide , after the reaction is completed the contents of the test tube will be ................ .
which of the following products produced on reaction concentrated H2So4 with Fe and does not produced on reacting the same acid with mixed oxide .............................................
By passing carbon mono oxide on red iron oxide at 300oC then adding conc . sulphuric acid to the product ......................... is formed.
All the following are methods for preparing red iron oxide ,except ......................
The solid substance produced from the reduction of Fe2O3 at 880oC
The correct statement from the following about the yellow-colored iron solution is that.