OXIDES
PART 1
A-1. The formulas of only the oxides are given in the series
1) H 2 SO 4, CaO, CuCl 2 3) P 2 O 5, BaO, SO 3
2) Na 2 CO 3, Na 2 O, N 2 O 5 4) NaOH, Na 2 O, Cu(OH) 2
A-2. The formulas of only the main oxides are given in the series
1) CO 2, CaO, CuO 3) P 2 O 5, BaO, SO 3
A-3. Formulas only acid oxides listed in a row
1) CO 2, SO 2, P 2 O 5 3) P 2 O 5, BaO, SO 3
2) CO 2, Na 2 O, N 2 O 5 4) CaO, Na 2 O, CuO
A-4. The interaction of oxides with water refers to reactions
1) compounds 3) decomposition
2) exchange 4) substitution
A-5. The production of metal oxide by heating an insoluble base refers to the reactions
1) compounds 3) decomposition
2) exchange 4) substitution
A-6. Sodium oxide Not interacts
1) with water 3) with base
2) with acid 4) with acid oxide
A-7. Sulfur oxide (IV) Not interacts
1) with water 3) with acid
2) with alkali 4) with basic oxide
A-8. An oxide that reacts only with an acid is
1) basic 3) amphoteric
A-9. An oxide that reacts only with alkali is
1) basic 3) amphoteric
2) acidic 4) non-salt-forming
A-10. A chemical reaction whose equation is
K 2 O + 2HNO 3 = 2KNO 3 + H 2 O
refers to reactions
1) compounds 3) decomposition
2) exchange 4) substitution
A-11. From the given equations of chemical reactions, select those that characterize general properties all basic oxides.
1) K 2 O + H 2 O = 2KOH 3) CuO + H 2 SO 4 = CuSO 4 + H 2 O
2) K 2 O + CO 2 = K 2 CO 3 4) Cu (OH) 2 = CuO + H 2 O
A-12. From the given equations of chemical reactions, select those that characterize the general properties of all acid oxides.
1) SO 3 + H 2 O = H 2 SO 4 3) H 2 SO 3 = SO 2 + H 2 O
2) SO 3 + Na 2 O = Na 2 SO 4 4) SO 3 + 2NaOH = Na 2 SO 4 + H 2 O
A-13. Oxides are:
1) complex substances that contain oxygen
2) complex substances consisting of two elements, one of which is oxygen
3) complex substances formed during oxidation simple substance
PART 2
B-1. From the given formulas, write down only the oxides
NaCl, Na 2 O, HCl, Cl 2 O 7, Ca 3 (PO 4) 2, CaO, P 2 O 5, H 2 O, H 3 PO 4.
B-2. From the given formulas, write down only the main oxides
FeO, K 2 O, CO 2, MgO, CrO, CrO 3, SO 2, P 2 O 5
B-3. From the given formulas, write down only acid oxides
MnO, Na 2 O, CO 2, MgO, Cl 2 O 7, CrO 3, SO 2, P 2 O 5, Li 2 O
B-4. Match the formula of the oxide with the formula
its corresponding hydroxide.
1) Na 2 O A ) Fe (OH ) 3
2) Fe 2 O 3 B) H 2 CO 3
3) BaO B) NaOH
4) CO 2 G) Ba(OH) 2
D ) H 2 SO 4
B-5. Match the name of the oxide with its formula.
1) sodium oxide A) SO 2
2) sulfur oxide (IV) B) SO 3
3) iron oxide (III) B) Na 2 O
4) phosphorus oxide (V) D) P 2 O 5
D) Fe2O3
B-6. Insert the missing formulas of substances into the reaction equation diagrams.
1) ... + H 2 O = Ca(OH) 2 3) MgO + ... = Mg (NO 3) 2 + ...
2) SO 3 + ... = H 2 SO 4 4) CO 2 + ... = Na 2 CO 3 + ...
B-7
1) … + … = MgO 3) … + … = NO
2) … + … = ZnO 4) … + … = P 2 O 5
V-8. Insert the missing formulas of substances into the reaction equation diagrams.
1) Fe(OH) 3 = … + … 3) H 2 SiO 3 = … + …
2) Cr (OH) 2 = … + … 4) H 2 SO 3 = … + …
V-9. Write down the formulas for the following oxides:
1) nitric oxide (V) 3) potassium oxide
2) carbon monoxide (IV) 4) aluminum oxide
V-10. Match the starting materials and reaction products.
1) K 2 O + H 2 SO 4 A) LiOH
2) N 2 O 5 + H 2 O B) Na 2 SO 4 + H 2 O
3) Li 2 O + H 2 O B) K 2 SO 4 + H 2 O
4) SO 3 + NaOH D) HNO 3
V-11. What oxides can be obtained by combustion in oxygen: a) CuS, b) CH 4. Write down equations for the corresponding chemical reactions.
B-12. Molar mass chromium(VI) oxide
1) 68 3) 100
2) 84 4) 152
B-13. Mass fraction(%) nitrogen in nitric oxide (IV)
1) 30,43 3) 56,23
2) 14 4) 46
ACIDS
A-1. Formulas of acids only are given in a row
1) HCl, NaCl, HNO 3 3) Ca(OH) 2, H 3 PO 4, Ca 3 (PO 4) 2
2) H 2 SO 3, H 2 SO 4, H 2 S 4) Na 2 O, NaNO 3, HNO 3
A-2. The formulas of only oxygen-containing acids are given in the series
1) HCl, HNO 3, H 2 S 3) H 3 PO 4, H 2 CO 3, H 2 SO 4
A-3. The formulas of only oxygen-free acids are given in the series
1) HCl, HNO 3, H 2 S 3) H 3 PO 4, H 2 CO 3, H 2 S
2) H 2 SO 3, HNO 2, H 2 S 4) H 2 S, HF, HCl
A-4. The formulas of only monobasic acids are given in the series
2) H 2 SO 3, HNO 2, H 2 S 4) H 2 SiO 3, HF, HNO 3
A-5. The formulas of only dibasic acids are given in the series
1) HCl, HNO 3, HF 3) H 3 PO 4, H 2 CO 3, H 2 SO 4
2) H 2 SO 3, H 2 S, H 2 SO 4 4) H 2 SiO 3, HF, HNO 3
A-6. The valency of the acid residue of sulfuric acid is
1) I 2) II 3) III 4) IV
A-7. The valency of the acidic residue of phosphoric acid is
1) I 2) II 3) III 4) IV
A-8. Dilute sulfuric acid can be recognized
1) by smell 2) by color
3) phenolphthalein solution 4) methyl orange solution
A-9. Litmus indicator acidic environment changes color to
1) blue 2) red 3) purple 4) does not change color
A-10. The interaction of zinc with hydrochloric acid refers to the reactions
1) exchange 3) substitution
2) decomposition 4) connection
A-11. The interaction of zinc oxide with hydrochloric acid refers to the reactions
1) exchange 3) substitution
2) decomposition 4) connection
A-12. Dilute sulfuric acid does not react
1) with Zn 2) with ZnO 3) with CO 2 4) with NaOH
A-13. A metal that does not release hydrogen from a sulfuric acid solution
1) Zn 2) Hg 3) Mg 4) Ca
A-14. An oxide that reacts with water to form an acid is
1) Na 2 O 2) SiO 2 3) P 2 O 5 4) Fe 2 O 3
A-15. Which oxide reacts with water to produce sulfuric acid?
A-16. Which acid oxide does not react with water?
1) CO 2 2) SO 2 3) SO 3 4) SiO 2
A-17. Inorganic acids are:
1) complex substances formed by a hydrogen atom and another non-metal
2) complex substances consisting of three elements, one of which is hydrogen
3) complex substances consisting of one or more hydrogen atoms that can be replaced by metal atoms and an acid residue
PART 2
B-1. From the following list of acids, write down the formulas of only oxygen-containing acids:
HCl, HNO 2, H 2 SO 4, HMnO 4, CH 3 COOH, H 2 S, H 2 SiO 3, HNO 3, HF, H 3 PO 4
B-2. From the following list of acids, write down the formulas of only dibasic acids:
HCl, HNO 2, H 2 SO 4, H 2 CrO 4, H 2 S, H 2 SiO 3, HNO 3, HF, H 3 PO 4, H 2 CO 3
B-3. Match the formula of the acid with its name.
1) HNO 3 A) hydrochloric
2) HCl B) sulfurous
3) H 2 SO 4 B) nitrogen
4) H 2 CO 3 D) sulfuric
D) coal
B-4. Match the formula of the acid with the name of the salt obtained from it.
1) HNO 3 A) chloride
2) HCl B) sulfite
3) H 2 SO 4 B) nitrate
4) H 2 CO 3 D) sulfate
5) H 3 PO 4 D) carbonate
E) phosphate
B-5. Establish a correspondence between the acid formula and the valency of its acid residue.
1) HNO 3 A) I
2) HCl B) II
3) H 2 SO 4 B) III
4) H 2 CO 3 D) IV
5) H3PO4
B-6. Complete the equations of feasible chemical reactions:
1) Li 2 O + H 2 SO 4 = 3) Al 2 O 3 + HCl =
2) Na 2 O + H 3 PO 4 = 4) Ag 2 O + HCl =
IN -7. Complete the equations of chemical reactions that can be used to produce hydrogen.
1) Mg + H 2 SO 4 = 3) Mg + HNO 3 =
2) Ca + HCl = 4) Ag + H 3 PO 4 =
B-8. Insert the missing formulas of substances into the reaction equation diagrams.
1) … + … = Mg(NO 3) 2 + H 2 O 3) … + … = K 3 PO 4 + H 2 O
2) … + … = MgCl 2 + H 2 4) … + … = Na 2 S + H 2 O
B-9. Establish a correspondence between the starting substances and the products of chemical reactions.
1) HgO + HNO 3 A) Al 2 (SO 4) 3 + H 2
2) Al + H 2 SO 4 B) K 3 PO 4 + H 2 O
3) Na 2 O + H 2 CO 3 B) Hg(NO 3 ) 2 + H 2 O
4) K 2 O + H 3 PO 4 D) Na 2 CO 3 + H 2 O
B-10. Which of the substances: Cu, CuO, Fe, CO 2, NaOH, AgNO 3 – will hydrochloric acid react with? Write down the equations of possible chemical reactions.
BASIC SUMMARY
A-1. Formulas of only bases are given in a row
1) Na 2 CO 3, NaOH, NaCl 3) KOH, Mg(OH) 2, Cu(OH) 2
2) KNO 3, HNO 3, KOH 4) HCl, BaCl 2, Ba(OH) 2
A-2. Formulas of only alkalis are given in a row
1) Fe(OH) 3, NaOH, Ca(OH) 2 3) KOH, Mg(OH) 2, Cu(OH) 2
2) KOH, LiOH, NaOH 4) Al(OH) 3, Fe(OH) 2, Ba(OH) 2
A-3. Of these compounds, the base insoluble in water is
1) NaOH 2) Ba(OH) 2 3) Fe(OH) 2 4) KOH
A-4. The indicator phenolphthalein in an alkaline environment changes its color to
1) colorless 2) crimson 3) red 4) yellow
A-5. A metal that reacts with water to form an alkali is
1) iron 2) copper 3) potassium 4) aluminum
A-6. An oxide that reacts with water to form an alkali is
1) aluminum oxide 3) lead (II) oxide
2) lithium oxide 4) manganese (II) oxide
A-7. Reaction of copper(II) hydroxide with nitric acid refers to reactions
1) exchange 3) substitution
2) decomposition 4) connection
A-8. A property that is common to insoluble bases and alkalis is
1) interaction with acid oxides
2) interaction with acid
3) interaction with salt
4) decomposition of the base
A-9. When the basic oxide reacts with water, a base can be formed
1) Al(OH) 3 2) Ba(OH) 2 3) Cu(OH) 2 4) Fe(OH) 3
A-10. The substance that reacts with potassium hydroxide is
1) water 3) barium oxide
2) phosphoric acid 4) iron
A-11. In which series do all the bases whose formulas are given decompose when heated?
1) Fe(OH) 3, Fe(OH) 2, Cu(OH) 2 3) KOH, Mg(OH) 2, Cu(OH) 2
2) Ca(OH) 2, Cr(OH) 2, NaOH 4) Al(OH) 3, Fe(OH) 2, Ba(OH) 2
PART 2
B-1. From the given formulas of substances, write down only those that indicate bases.
H2SO4, Ca(OH)2, CaO, NaOH, Na3PO4, P2O5, Fe(OH)3, Fe2O3, Cu(OH)2, LiOH.
V-2. Write the formula for each of the listed bases.
1) iron (II) hydroxide 3) copper (II) hydroxide
2) barium hydroxide 4) copper (I) hydroxide
B-3. The reaction between lithium hydroxide and nitric acid is called the reaction......
B-4. Match the formula of the metal hydroxide with its name.
1) NaOH A) calcium hydroxide
2) Al (OH) 3 B) iron (II) hydroxide
3) Ca (OH) 2 B) aluminum hydroxide
4) Fe (OH) 2 G) sodium hydroxide
D) iron (III) hydroxide
B-5. Match between chemical formula substance and class inorganic compounds, to which it belongs.
1) MgO A) acid
2) H 3 PO 4 B) alkali
3) Al(OH)3B) oxides
4) NaOH D) insoluble bases
B-6. Establish a correspondence between the formulas of the starting substances and fragments of the reaction equations.
1) ZnCl 2 + NaOH = A) Al 2 O 3 + H 2 O
2) SO 2 + NaOH = B) Zn(OH) 2 + NaCl
3) H 2 SO 4 + KOH = B) Na 2 SO 3 + H 2 O
4) Al(OH) 3 = G) K 2 SO 4 + H 2 O
B-7. Complete the equations of chemical reactions.
1) LiOH + SO 3 = 3) Ca(OH) 2 + CO 2 =
2) NaOH + P 2 O 5 = 4) Ba(OH) 2 + SO 2 =
V-8. Complete the equations for the chemical reactions that occur when heated.
1) Mg(OH) 2 = 3) Fe(OH) 3 =
2) Al (OH) 3 = 4) Cu (OH) 2 =
V-9. Insert the missing formulas of substances into the diagrams of neutralization reaction equations.
1) … + … = Mg(NO 3 ) 2 + H 2 O 3) … + … = K 3 PO 4 + H 2 O
2) … + … = MgCl 2 + H 2 O 4) … + … = Na 2 S + H 2 O
B-10. Establish a correspondence between the starting substances and the products of chemical reactions.
1) NaOH + CO 2 A) FeO + H 2 O
2) NaOH + H 2 SO 4 B) Na 2 CO 3 + H 2 O
3) Fe(OH) 2 + HCl B) Na 2 SO 4 + H 2 O
4) Fe(OH) 2 G) FeCl 2 + H 2 O
C O L I
Part 1
A-1. Formulas of salts only are given in the series
1) K 2 CO 3, H 2 CO 3, KOH 3) H 2 S, Ba(NO 3) 2, Ba Cl
2) AlCl 3, Ca(NO 3) 2, FeS 4) Cu(OH) 2, CuSO 4, CuS
A-2. The salt must contain
1) metal atoms 3) acid residue
2) oxygen atoms 4) hydrogen atoms
A-3. The salt formula is incorrect
1) Na 3 PO 4 2) Al 3 S 2 3) Ba (NO 3 ) 2 4) AlCl 3
A -4. Sodium Orthophosphate Formula
1) NaH 2 PO 4 2) Na 2 HPO 4 3) Na 3 PO 4 4) NaNO 3
A-5. The valence of the acid residue in aluminum sulfate is
1) 1 2) 2 3) 3 4) 4
A-6. Substances that react with salts are
1) metals 3) basic oxides
2) non-metals 4) insoluble bases
A-7. An oxide that reacts with an acid to form a salt is
1) P 2 O 5 2) CuO 3) SO 2 4) CO 2
A-8. The oxide that reacts with sodium hydroxide to form a salt is
1) Fe 2 O 3 2) K 2 O 3) SO 3 4) BaO
A-9. Equation chemical reaction
BaCl 2 + K 2 SO 4 = BaSO 4 + 2KCl
refers to the reaction
1) substitution 3) exchange
2) compounds 4) decomposition
A-10. On the left side of the chemical reaction equation
… + … = Zn(OH) 2 + 2KCl
1) K + ZnCl 2 3) 2KOH + Zn(NO 3) 2
2) ZnCl 2 + 2H 2 O 4) 2KOH + ZnCl 2
A-11. Chemical reaction equation
Zn + CuSO 4 = ZnSO 4 + Cu
refers to the reaction
1) substitution 3) exchange
2) compounds 4) decomposition
A-12. Copper(II) sulfate reacts
1) with Hg 2) with NaCl 3) with NaOH 4) with O 2
A-13. On the left side of the chemical reaction equation
… + … = CuSO 4 + H 2 O
instead of the ellipsis you should write
1) Cu + FeSO 4 3) CuO + H 2 SO 4
2) CuO + FeSO 4 4) Cu + H 2 SO 4
A-14. On the right side of the chemical reaction equation
6NaOH + P 2 O 5 = ... + ...
instead of the ellipsis you should write
1) 3Na 2 O + 2H 3 PO 4 3) Na 3 PO 4 + H 2 O
2) 2Na 3 PO 4 + 3H 2 O 4) 2Na 3 PO 4 + 3H 2
A-15. On the right side of the chemical reaction equation
Al 2 O 3 + 6HNO 3 = ... + ...
instead of the ellipsis you should write
1) Al(NO 3) 3 + H 2 O 3) Al(NO 3) 3 + H 2
2) 2Al(NO 3) 3 + 3H 2 O 4) 2Al(NO 3) 3 + 3H 2
PART 2
№p/p
Names of acids
Acid formulas
Names of acid residues
Nitric acid
Sulfurous acid
Phosphoric acid
Silicic acid
Carbonic acid
Hydrogen sulfide acid
Hydrobromic acid
Hydrofluoric acid
Hydroiodic acid
№p/p
Names of acids
Acid formulas
Acidic residues and their valencies
Names of acid residues
Sulfuric acid
Nitric acid
Hydrochloric acid
Sulfurous acid
Phosphoric acid
Silicic acid
Carbonic acid
Hydrogen sulfide acid
Hydrobromic acid
Hydrofluoric acid
Hydroiodic acid
№p/p
Names of acids
Acid formulas
Acidic residues and their valencies
Names of acid residues
Sulfuric acid
Nitric acid
Hydrochloric acid
Sulfurous acid
Phosphoric acid
Silicic acid
Carbonic acid
Hydrogen sulfide acid
Hydrobromic acid
Hydrofluoric acid
Hydroiodic acid
Methods for obtaining salts.
Questions for the seminar on the topic “Salts. Composition of salts. Classification of salts".
Define what substances are called salts?
Explain the algorithm and use a specific example to show how to correctly compose the salt formula.
What is the classification of salts? (Answer this question in the form of a table with examples of formulas for each type of salt).
How to correctly name medium salts, acidic and basic salts?
Methods for obtaining salts.
Questions for the seminar on the topic “Salts. Composition of salts. Classification of salts".
Define what substances are called salts?
Explain the algorithm and use a specific example to show how to correctly compose the salt formula.
What is the classification of salts? (Answer this question in the form of a table with examples of formulas for each type of salt).
How to correctly name medium salts, acidic and basic salts?
Methods for obtaining salts.
Questions for the seminar on the topic “Salts. Composition of salts. Classification of salts".
Define what substances are called salts?
Explain the algorithm and use a specific example to show how to correctly compose the salt formula.
What is the classification of salts? (Answer this question in the form of a table with examples of formulas for each type of salt).
How to correctly name medium salts, acidic and basic salts?
Methods for obtaining salts.
Questions for the seminar on the topic “Salts. Composition of salts. Classification of salts".
Define what substances are called salts?
Explain the algorithm and use a specific example to show how to correctly compose the salt formula.
What is the classification of salts? (Answer this question in the form of a table with examples of formulas for each type of salt).
How to correctly name medium salts, acidic and basic salts?
Methods for obtaining salts.
Option 2 1. The formulas of only the main oxides are given in a row
1) CO 2, CaO, CuO
2) CO 2, Na2 O, N2 O5
3) P 2 O5, BaO, SO3
4) CaO, Na 2 O, Cs2 O
2. Formulas of only alkalis are given in a row
1) Fe(OH) 3 , NaOH, Ca(OH)2
2) KOH, LiOH, NaOH
3) KOH, Mg(OH) 2, Cu(OH)2
4) Al(OH) 3 , Fe(OH)2 , Ba(OH)2
3. Of the indicated compounds, alkali is
1) Fe(OH) 2
2) LiOH
3) Mg(OH) 2
4) Cu(OH) 2
4. Sodium oxide does not react 1) with water 2) with acids
3) with bases
4) with acid oxides
5. Match the name of the oxide with its formula.
6. An oxide that reacts with an acid to form a salt is
1) P 2 O5
2) CuO
3)SO2
4) CO 2
7. Establish a correspondence between the chemical formula of a substance and the class of inorganic compounds to which it belongs.
8. The litmus indicator in an alkaline medium becomes 1) violet 2) red 3) blue 4) colorless
9. Establish a correspondence between the starting substances and the products (products) of chemical reactions.
1) K2 O + H2 SO4 |
|
2) N2 O5 + H2 O |
B. Na2SO4 + H2O |
3) Li2O + H2O |
B. K2 SO4 + H2 O |
4) SO3 + NaOH |
G. HNO3 |
10. Formulas of only oxygen-free acids are given in a row
1) HCl, HNO 3, H2 S
2) H 2 SO3, H2 S, HNO2
3) H 3 PO4, H2 CO3, H2 S
4) H 2 S, HF, HCl
11.Write reaction equations that can be used to carry out transformations:
Al → Al2 O3 →Al(OH)3 →Al2 (SO4 )3
Option 3 1. Formulas of only acid oxides are given in a row
1) CO 2, SO2, SO3
2) CO 2, Na2 O, N2 O5
3) P 2 O5, BaO, SO3
4) CaO, Na 2 O, CuO
2. Formulas of only acids are given in a row
1) HCl, NaCl, HNO 3
2) H2SO3, H2SO4, H2S
3) Ca(OH)2, H3PO4, Ca3(PO4)2
4) Na 2 O, NaNO3, HNO3
3. A metal that reacts with water to form an alkali is
1) iron
2) copper
3) potassium
4) aluminum
4. Of the above compounds, the base insoluble in water is
1) LiOH
2) Ca(OH) 2
3) Cu(OH) 2
4) KOH
5. Sulfur(IV) oxide does not react 1) with water 2) with alkalis
3) with acids
4) with basic oxides
6. The litmus indicator in an acidic environment becomes 1) violet 2) red 3) blue 4) colorless
7. Establish a correspondence between the chemical formula of the salt and the class to which it belongs.
1) Na 3 PO4
2) Na 2 HPO4
3) K 2 NaPO4
4) Al(OH) 2 Cl
A. acid salts B. double salts
B. medium salts G. basic salts
8. Establish a correspondence between the starting substances and the products of chemical reactions.
1) HgO + HNO 3
2) Al + H 2 SO4
3) Na 2 O + CO2 + H2 O
4) K 2 O + H3 PO4
A. Al 2 (SO4)3 + H2 B. K3 PO4 + H2 O
1) NaOH, Cr(OH) 2, Ca(OH)2
2) Fe(OH) 3 , Cu(OH)2 , Fe(OH)2
3) Ba(OH)2, Mg(OH)2, KOH
4) KOH, LiOH, Al(OH) 3
11. Write the reaction equations with which transformations can be carried out:
Ba → BaO → Ba(OH)2 → BaCl2
MITROFANOVA SVETLANA VALERIEVNA
Smeltsova IRINA LEONIDOVNA
VASINA YANINA ALEXANDROVNA
MAIN CLASSES OF INORGANIC COMPOUNDS
Guidelines for laboratory work in the discipline "Chemistry" for 1st year students of all directions and specialties.
Signed for publication_________________2010. Format 60x90 1/16.
Newsprint paper. Offset printing.
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Printing Center of the Nizhny Novgorod State University of Architecture and Civil Engineering, 603950. Nizhny Novgorod, Ilyinskaya St., 65.
Test on the topic "Fundamentals" 8th grade
Option I.
Cu(OH)2 belongs to the class
1) acids3) salts
2) oxides4) bases
2. Specify the formula of potassium hydroxide
1) K2O2) CaO3) Ca(OH)24) KOH
3. Formulas of alkalis... and...
1) MgOHCl2) NaOH3) HClO4) KOH
4. The properties of alkalis include... and...
1) interaction with hydrogen3) interaction with acids
2) decomposition when heated 4) interaction with acid oxides
5. Which statement is not typical for alkalis?
1) bases soluble in water
2) change the color of the indicator - phenolphthalein
3) react with acids to form salts
4) interact with basic oxides
6. To obtain iron (III) hydroxide, you need1) oxide and water3) iron and water
2) alkali and iron (II) salt solution 4) alkali and iron (II) oxide
7. Sodium hydroxide can be distinguished from copper (II) hydroxide ... and ...
1) indicator3) by color
2) hydrochloric acid4) adding NaCl8. Decomposes when heated moderately
1) potassium hydroxide3) iron (III) hydroxide
2) phosphorus hydroxide4) sodium hydroxide
9. Ca(OH)2 interacts with ... and ...
1) HCl2) CuO3) Fe4) CO2
10. To obtain copper (II) hydroxide, you need1) CuO and H2O3) CuSO4 and NaOH2) CuO and H2O4) CuSO4 and H2O
11. Calcium hydroxide reacts with
1) barium oxide3) hydrochloric acid
2) potassium chloride4) sodium hydroxide
12. Each of the two substances reacts with a solution of barium hydroxide
1) copper (II) oxide and zinc hydroxide3) hydrogen sulfide and silver
2) carbon monoxide (IV) and hydrochloric acid 4) silicic acid and hydrogen
13. Reacts with copper (II) hydroxide
1) nitric acid3) hydrogen
2) zinc oxide4) calcium carbonate
14. Each of two substances reacts with a solution of barium hydroxide
1) Na2SO4 and CO23) K2O and H2SiO3
2) KNO3 and FeO4) Mg(OH)2 and NO
15. Aluminum hydroxide
1) interacts only with acid
2) interacts only with alkali
Test on the topic "Fundamentals" 8th grade
Option II.
Formulas of only bases are given in a row
1) Na2CO3, NaOH, NaCl3) KOH, Mg(OH)2, Cu(OH)2
2) KNO3, HNO3, KOH4) HCl, BaCl2, Ba(OH)2
2. Formulas of only alkalis are given in a row
1) Fe(OH)3, NaOH, Ca(OH)23) KOH, Mg(OH)2, Cu(OH)2
3) KOH, LiOH, NaOH4) Al(OH)3, Fe(OH)2, Ba(OH)2
3. Formulas only amphoteric bases listed in a row
1) Na2CO3, NaOH, CaCl23) KOH, Mg(OH)2, Cu(OH)2
2) Al(OH)3, Zn(OH)2, Be(OH)24) Be(OH)2, BaCl2, Ba(OH)2
4. Of the above compounds, the base insoluble in water is
1) NaOH2) Ba(OH)23) Fe(OH)24) KOH
5. The indicator phenolphthalein changes its color in an alkaline medium to1) colorless3) red
2) crimson4) yellow
6. The litmus indicator changes its color in an alkaline medium to1) violet3) blue
2) red4) colorless
7. A metal that reacts with water to form an alkali is
1) iron2) copper3) potassium4) aluminum
8. An oxide that, when interacting with water, forms an alkali is
1) aluminum oxide3) lead (II) oxide
2) lithium oxide4) manganese (II) oxide
9. The interaction of copper (II) hydroxide with nitric acid refers to the reaction
1) connections3) substitutions
2) decomposition 4) exchange
10. Iron (III) hydroxide reacts with1) H2SO42) SO33) P2O54) CuSO4
11. A property that is common to insoluble bases and alkalis is
1) interaction with acid oxides
2) interaction with acid
3) interaction with salt
4) decomposition of the base
12. Zinc hydroxide
1) interacts with acid only 2) interacts with alkali only
3) interacts with both acid and alkali
4) does not interact with either acid or alkali
13. When the basic oxide reacts with water, a base is formed
1) Al(OH)32) Ba(OH)23) Cu(OH)24) Fe(OH)3
14. The substance that reacts with potassium hydroxide is
1) water2) phosphoric acid3) barium oxide4) iron
15. In which series do all bases decompose when heated?
1) NaOH, Cr(OH)2, Ca(OH)23) Ba(OH)2, Mg(OH)2, KOH
2) Fe(OH)3, Cu(OH)2, Fe(OH)24) KOH, LiOH, Al(OH)3
16. Does not react with potassium hydroxide
1) hydrochloric acid3) carbon monoxide (IV)
2) barium oxide4) silicic acid
