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Demonstration OGE in chemistry. OGE in chemistry Fipi practice tests in chemistry OGE

Training test for preparation for the OGE - 2017 in chemistry in 9th grade

Prepared by:

Tribunskaya Elena Zhanovna,

chemistry teacher MAOU Secondary School No. 7

Balakovo Saratov region

Target:

1) repeat the material studied

2) introduce students to the structure of the examination paper

3) help students prepare for the OGE.

Instructions for performing the work

2 hours (120 minutes) are allotted to complete the work. The work consists of 2 parts, including 22 tasks. Part 1 contains 19 short-answer tasks, part 2 contains 3 long-answer tasks.

Answers to tasks 1-15 are written in the form of one number, which corresponds to the number of the correct answer.

Answers to tasks 16-19 are written as a sequence of numbers.

For tasks 20-22, you should give a complete, detailed answer, including the necessary reaction equations and the solution to the problem.

When performing work, you can use the Periodic Table chemical elements DI. Mendeleev, a table of solubility of salts, acids and bases in water, an electrochemical series of metal voltages and a non-programmable calculator.

Used textbooks and Internet resources :
O.S. Gabrielyan "Chemistry 9th grade". M., Bustard. 2013
O.S. Gabrielyan "Chemistry 8th grade". M., Bustard. 2013
Open BANK of tasks for OGE chemistry

Part 1

1. Three electron layers and one electron in the outer electron layer correspond to an atom:

1) chlorine; 3) sodium;

2) lithium; 4) hydrogen.

Answer:

2. In which series are the metallic properties of their corresponding elements enhanced? simple substances:

1) beryllium - magnesium - calcium;

2) fluorine - bromine - chlorine;

3) sulfur – oxygen – selenium;

4) carbon - lead - silicon.

Answer:

3. Compounds with a covalent polar and covalent nonpolar bond are respectively

1) RbClAndCl 2 3) O 3 AndH 2 S

2) HBrAndN 2 4) N.H. 3 AndH 2 O

Answer:

4 Phosphorus exhibits oxidation state +5 in the compound

1)P 2 O 3 3)Na 3 P

2) PH 3 4) Mg(H 2 P.O. 4 ) 2

Answer:

5. Substances whose formulas areBeOAndBaO, are respectively:

1) basic oxide and acidic oxide

2) amphoteric oxide and basic oxide

3) acid oxide and basic oxide

4) basic oxide and amphoteric oxide

Answer:

6. The reaction whose equation is 2Rb+2 H 2 O=2 RbOH+ H 2 refer to reactions:

1) substitution, exothermic;

2) decomposition, exothermic;

3) addition, endothermic;

4) exchange, endothermic.

Answer:

7 . IonsSO 3 2- are formed upon dissociation in an aqueous solution:

1) potassium sulfide; 3) potassium sulfate;

2) sulfuric acid; 4) potassium sulfite.

Answer:

8. Gas is released when interacting:

1) zinc hydroxide and hydrochloric acid; 3) copper hydroxide(II) and nitric acid;

2) copper sulfide and hydrochloric acid 4) potassium oxide and nitric acid.

Answer:

9. Calcium interacts with each of the substances whose formulas are listed in the group:

1) TO, O 2 , HCl; 3) O 2 , H 2 O,N 2 ;

2) Cu, O 2 , N 2; 4) H 2 O,TOOH, S.

Answer:

10 .Beryllium oxide reacts with each of two substances:

1) NaAndH 2 O 3) HClAndO 2

2) H 2 OAndHNO 3 4) KOHAndH 2 SO 4

Answer:

11 . A solution of nitric acid reacts with each of two substances:

1) AgAndRbOH;

2) N 2 OAndCO 2 ;

3) NiOAndHCI;

4) Ba(NO 3 ) 2 AndN.H. 3 .

Answer:

12. Among the substances: sodium chloride, sodium sulfide, sodium sulfate - in reaction with copper nitrate (II) enter(s)

1) two substances; 3) one substance;

2) three substances; 4) not a single substance.

Answer:

13. Are the following statements true?

A. You can separate alcohol from water by settling.

B. An aqueous solution of salt and chalk can be separated by filtration.

1) only A is true; 3) both judgments are correct;

2) only B is true; 4) both judgments are incorrect.

Answer:

14. Ammonia is an oxidizing agent in the reaction scheme of which:

1) N 2 +H 2 →NH 3 ; 3) NH 3 +CuO→Cu+ N 2 +H 2 O;

2) NH 3 +O 2 →N 2 +H 2 O; 4) NH 3 +K→KNH 2 +H 2 .

Answer:

15 . On which diagram does the distribution of mass fractions of elements correspond to the qualitative composition of ammonium phosphate?

1) 3)

2) 4)

Answer:

Part 2

16. In the series of chemical elementsCl - S- R

1) the charges of atomic nuclei decrease;

2) the acidic properties of their oxides increase;

3) the lowest oxidation state decreases;

4) the radius of atoms decreases;

5) non-metallic properties are enhanced.

Answer:

17. For hydrocarbon C 2 N 6 characteristic:

1) substitution reaction;

2) dehydrogenation reaction;

3) discoloration bromine water;

4) isomerization reaction;

5) reaction with water.

Answer:

18. Establish a correspondence between two substances and a reagent that can be used to distinguish between these substances

Substances: Reagent:

A)NaIAndNaClO 3 1) Ca( OH) 2

B) HFAndRb 2 SO 4 2) AgNO 3

IN) CO 2 AndCaC 2 3) phenolphthalein

4) Ba(NO 3 ) 2

Answer:

19. Match the name of the substance with the reagents with which this substance can interact.

NAME REAGENTS

SUBSTANCES:

A) zinc oxide 1)K 2 O, Na

B) carbon dioxide 2)SO 2 , H 2 O

B) sulfuric acid 3)Ca( OH) 2 , H 2 O

4) HBr, Ca( OH) 2

Answer:

Part 2

20. Using the electronic balance method, arrange the coefficients in the reaction equation, the diagram of which

H 2 O 2 + N.H. 3 → N 2 + H 2 O

Identify the oxidizing agent and the reducing agent.

21. Carbon dioxide was passed through a solution of calcium hydroxide. 648 g of calcium bicarbonate with a mass fraction of 1% was formed. Calculate the volume of reacted gas

22. Given substances: Be,NaNO 3 , KOH, H 2 SO 4 , Na 2 SO 4 , MgO. Using water and necessary substances only from this list, get beryllium hydroxide in two stages. Describe the signs of the reactions being carried out. For an ion exchange reaction, write the abbreviated ionic equation for the reaction.

Assessment system for test work in chemistry

Correct completion of each taskpart 1 basic level Difficulty (1–15) is scored 1 point.

Correct completion of each taskpart 1 higher level Difficulty (16–19) is assessed with a maximum of 2 points. Tasks 16 and 17 are considered correctly completed if two answer options are correctly selected in each of them. For an incomplete answer - one of two answers is correctly named or three answers are named, two of which are correct - 1 point is given. The remaining answer options are considered incorrect and are scored 0 points.

Tasks 18 and 19 are considered completed correctly if three correspondences are correctly established. An answer in which two out of three matches are established is considered partially correct; it is worth 1 point. The remaining options are considered an incorrect answer and are scored 0 points.

Part 1

Part 2

20. Using the electronic balance method, arrange the coefficients in the reaction equation, the diagram of which is:

H 2 O 2 + N.H. 3 → N 2 + H 2 O

Specify the oxidizing agent and the reducing agent.

Elements answer

1. An electronic balance has been compiled.

3 │2О -1 + 2ē → 2О -2

1 │2 N -3 - 6ē →N 2 0

2. The coefficients in the reaction equation are set:

3 H 2 O 2 + 2 N.H. 3 → N 2 + 6 H 2 O

3. It is indicated that the reducing agent isN -3 , and the oxidizing agent is O -1

Evaluation criteria

Points

There was an error in only one of the elements in the answer.

There were errors in two elements in the answer

Maximum score

21. Carbon dioxide was passed through a solution of calcium hydroxide. 648 g of calcium bicarbonate with a mass fraction of 1% was formed. Calculate the volume of reacted gas

Response Elements

(other wording of the answer is allowed that does not distort its meaning)

1) Reaction equation 2 has been compiledCO 2 + Ca( OH) 2 = Ca( HCO 3)2

2) Calculate the mass and amount of potassium bicarbonate substance obtained as a result of the reaction:

mclean(Ca( HCO 3)2 ) = msolution (Ca(HCO 3)2 ) * w (Ca(HCO 3)2 )= 648 * 0.01=6.48g.

M(Ca(HCO 3)2 )=164g/mol

n(Ca(HCO 3)2 )= 6.48g/ 164g/mol= 0.04mol

3) Calculate the volumeCO 2

n(CO 2 )=2 n(Ca(HCO 3)2 )=2 * 0.04=0.08 mol

V(CO 2 )=n * V m = 0,08 * 22,4 = 1.8l.

Evaluation criteria

Points

The answer is correct and complete, includes all the named elements

3

2 elements from the above are written correctly

2

Correctly written 1 element from the above (1st or 2nd)

1

All elements of the answer are written incorrectly

0

Maximum score

3

22. Dans substances: Ve, NaNO 3 , KOH, H 2 SO 4 ,Na 2 SO 4 , MgO.Using water and the necessary substances only from this list, obtain beryllium hydroxide in two stages. Describe the signs of the reactions being carried out. For an ion exchange reaction, write the abbreviated ionic equation for the reaction.

Response Elements

(other wording of the answer is allowed that does not distort its meaning)

    1) A chain of transformations has been compiled:

Ve VeSO 4 Ve(OH) 2

Two reaction equations are compiled:

2) Ve+H 2 SO 4 = VeSO 4 +H 2

3) VeSO 4 + 2KOH = Ve(OH) 2 ↓+ K 2 SO 4

4) Signs of reactions occurring are described:

for the first reaction: zinc dissolves, a colorless gas is released;

for the second reaction: the formation of a white precipitate.

5) An abbreviated ionic equation for the second reaction has been compiled:

Ve 2 + + 2 OH - = Ve(OH) 2 ↓

Evaluation criteria

Points

The answer is correct and complete, includes all the named elements

5

Four elements of the answer are written correctly

4

Three elements of the answer are written correctly

3

Two elements of the answer are written correctly

2

One element of the answer is correctly written

1

All elements of the answer are written incorrectly

0

Maximum score

5

Specification
control measuring materials
to be held in 2017
main state exam
in CHEMISTRY

1. Purpose of CMM for OGE- to assess the level of general educational training in chemistry of graduates of IX grades of general education organizations for the purpose of state final certification of graduates. The exam results can be used when admitting students to specialized classes high school.

OGE is carried out in accordance with Federal law Russian Federation dated December 29, 2012 No. 273-FZ “On education in the Russian Federation.”

2. Documents defining the content of CMM

3. Approaches to content selection and CMM structure development

The development of CMM for the OGE in chemistry was carried out taking into account the following general provisions.

  • KIMs are focused on testing the assimilation of a knowledge system, which is considered as an invariant core of the content of existing chemistry programs for primary schools. In the Federal component of the state educational standard in chemistry, this knowledge system is presented in the form of requirements for the training of graduates.
  • CMMs are designed to provide the opportunity for differentiated assessment of graduates’ training. For these purposes, testing the mastery of the basic elements of the content of a chemistry course in grades VIII-IX is carried out at three levels of complexity: basic, advanced and high.
  • The educational material on the basis of which the assignments are based is selected on the basis of its significance for the general educational preparation of secondary school graduates. In this case, special attention is paid to those elements of content that are developed in the chemistry course of grades X-XI.

4. Connection of the OGE exam model with the Unified State Exam KIM

The most important principle taken into account when developing CIMs for the Unified State Examination is their continuity with the Unified State Examination CIMs, which is due to uniform approaches to assessing the educational achievements of students in chemistry in primary and secondary schools.

The implementation of this principle is ensured by: the uniformity of requirements for the selection of content tested by OGE tasks; similarity of structures of exam versions of KIM for the OGE and the Unified State Exam; the use of similar models of tasks, as well as the identity of assessment systems for tasks of similar types used in both the OGE and the Unified State Exam.

5. Characteristics of the structure and content of CMM 1

In 2017, for the choice of executive authorities of the constituent entities of the Russian Federation that manage the field of education, two models of examination work are offered, the structure and content of the tasks included in it are similar to the models of examination work in 2014.

Each version of the examination paper consists of two parts.

Part 1 contains 19 tasks with a short answer, including 15 tasks of a basic level of complexity (the serial numbers of these tasks: 1, 2, 3, 4, ... 15) and 4 tasks of an increased level of complexity (the serial numbers of these tasks: 16, 17, 18, 19). Despite all their differences, the tasks in this part are similar in that the answer to each of them is written briefly in the form of one number or a sequence of numbers (two or three). The sequence of numbers is written on the answer form without spaces or other additional characters.

Part 2 depending on the CMM model, it contains 3 or 4 tasks of a high level of complexity, with a detailed answer. The difference between exam models 1 and 2 lies in the content and approaches to completing the last tasks of the exam options:

  • exam model 1 contains task 22, which involves performing a “thought experiment”;
  • exam model 2 contains tasks 22 and 23, which involve performing a real chemical experiment.

The tasks are arranged according to the principle of a gradual increase in their level of difficulty. The share of tasks of basic, advanced and high levels of complexity in the work was 68, 18 and 14%, respectively.
A general idea of ​​the number of tasks in each part of the examination paper of models 1 and 2 is given in Table 1.

..............................

1 Model 1 (M1) corresponds to demonstration version No. 1; model 2 (M2) – demonstration version No. 2.

The manual contains 10 variants of standard test tasks for the 2017 Main State Exam.
The purpose of the manual is to develop students’ practical skills in preparing for the 9th grade exam in chemistry in 2017.
The collection contains answers to all test options and provides detailed analysis all tasks of one of the options.
The manual is intended for teachers and methodologists who use tests to prepare students for the 2017 Main State Exam; it can also be used by students for self-preparation and self-control.
By order of the Ministry of Education and Science of the Russian Federation teaching aids publishing house "Exam" are approved for use in educational institutions.

Examples.
If you heat a piece of chalk, let it cool, and then place it in a test tube with a small amount of water to which a few drops of phenolphthalein have been added, then:
1) no changes will occur
2) the color of the contents of the test tube will become crimson
3) a transparent colorless solution is formed
4) the release of gas bubbles is observed

Are the following statements about the rules true?
safe work in a chemical laboratory?
A. Oxygen obtained from hydrogen peroxide cannot be detected by smell.
B. Hydrogen obtained as a result of the interaction of zinc with hydrochloric acid, when igniting, there is no need to check for cleanliness.
1) only A is correct
2) only B is correct
3) both judgments are correct
4) both judgments are incorrect

CONTENT
Preface
Information about two exam models for conducting the OGE in chemistry
Instructions for performing the work (model 1)
Evaluation system for examination work in chemistry
Part 1
Part 2
Exam paper options Option 1
Part 1
Part 2
Option 2
Part 1
Part 2
Option 3
Part 1
Part 2
Option 4
Part 1
Part 2
Option 5
Part 1
Part 2
Instructions for performing the work (model 2)
Instructions for completing task 23
Option 6
Part 1
Part 2
Option 7
Part 1
Part 2
Option 8
Part 1
Part 2
Option 9
Part 1
Part 2
Option 10
Part 1
Part 2
Solving problems of option 3
Part 1
Part 2
Answers and solutions
Part 1
Part 2
Answers to the tasks of part 2.


Free download e-book in a convenient format, watch and read:
Download the book OGE 2017, Chemistry, grade 9, Typical test tasks, Koroshchenko A.S. - fileskachat.com, fast and free download.

  • OGE-2019, Chemistry, 10 training versions of exam papers to prepare for the main state exam, Koroshchenko A.S., Kuptsova A.V., 2019
  • OGE 2019, Chemistry, 9th grade, 32 options, Typical test tasks, Molchanova G.N., Medvedev Yu.N., Koroshchenko A.S.
  • OGE 2019, Chemistry, 9th grade, 14 options, Typical test tasks, Molchanova G.N., Medvedev Yu.N., Koroshchenko A.S.
  • OGE (GIA-9), Chemistry, Diagnostic workbook for exam preparation, grade 9, Koroshchenko A.S., Yashukova A.V., Ivanova R.G., 2015

For answers to tasks 20-22, use a separate sheet. First write down the number of the task (20, 21, 22), and then the detailed answer to it. Write down your answers clearly and legibly.

Using the electronic balance method, arrange the coefficients in the reaction equation, the diagram of which

HI + H 2 SO 4 → I 2 + H 2 S + H 2 O

Identify the oxidizing agent and the reducing agent.

Show answer

1) An electronic balance has been compiled:

2) The coefficients in the reaction equation are set:

8HI + H 2 SO 4 = 4I 2 + H 2 S + 4H 2 O

3) It is indicated that sulfur in the oxidation state +6 is an oxidizing agent, and iodine in the oxidation state –1 is a reducing agent

170 g of silver nitrate solution was mixed with excess sodium chloride solution. A precipitate weighing 8.61 g formed. Calculate the mass fraction of salt in the silver nitrate solution.

Show answer

1) The reaction equation has been drawn up:

AgNO 3 + NaCl = AgCl + NaNO 3

2) The amount of substance and mass of silver nitrate contained in the original solution were calculated:

according to the reaction equation n(AgNO 3) = n(AgCl) = m(AgCl) / M(AgCl) = 8.61 / 143.5 = 0.06 mol

m(AgNO 3) = n(AgNO 3) M(AgNO 3) = 0.06 170 = 10.2 g

3) Calculated mass fraction silver nitrate in the original solution:

ω(AgNO 3) = m(AgNO 3) / m(solution) = 10.2 / 170 = 0.06, or 6%

Given substances: FeCl 3, H 2 SO 4 (conc.), Fe, Cu, NaOH, CuSO 4. Using water and the necessary substances only from this list, obtain iron(II) hydroxide in two stages. Describe the signs of the reactions being carried out. For an ion exchange reaction, write the abbreviated ionic equation for the reaction.

Show answer

Two reaction equations are compiled:

1) Fe + CuSO 4 = FeSO 4 + Cu

2) FeSO 4 + 2NaOH = Fe(OH) 2 + Na 2 SO 4

Signs of reactions occurring are described:

3) for the first reaction: release of a red precipitate of copper metal;

4) for the second reaction: the formation of a gray-green precipitate.

An abbreviated ionic equation for the second reaction has been compiled.

OGE 2017 Chemistry Typical test tasks Koroshchenko

M.: 2017. - 96 p.

The manual contains 10 variants of standard test tasks for the 2017 Main State Exam. The purpose of the manual is to develop students’ practical skills in preparing for the 9th grade exam in chemistry in 2017. The collection contains answers to all test options and provides a detailed analysis of all tasks for one of the options. The manual is intended for teachers and methodologists who use tests to prepare students for the 2017 Main State Exam; it can also be used by students for self-preparation and self-control.

Format: pdf

Size: 1.5 MB

Watch, download:drive.google

CONTENT
Preface 5
Information about two exam models for conducting the OGE in Chemistry 8
Instructions for performing work (model 1) 9
Evaluation system for examination work in chemistry
Part 1 10
Part 2 10
Exam paper options
Option 1
Part 1 18
Part 2 22
Option 2
Part 1 23
Part 2 27
Option 3
Part 1; 28
Part 2 32
Option 4
Part 1 33
Part 2 37
Option 5
Part 1 38
Part 2 42
Instructions for performing work (model 2) 43
Instructions for completing task 23 44
Option 6
Part 1 46
Part 2 50
Option 7
Part 1 51
Part 2 55
Option 8
Part 1 56
Part 2 60
Option 9
Part 1 62
Part 2 66
Option 10
Part 1 67
Part 2 71
Solving problems of option 3
Part 1 72
Part 2 83
Answers and solutions
Part 1 85
Part 2 86
Answers to the tasks of part 2 88

Basic general education ends with the Main State Exam of graduates, during which the compliance of their knowledge with the requirements of the state educational standard is checked.
The examination of 9th grade graduates of general education organizations is carried out in the form of testing.
Requirements for the level of training of graduates in chemistry specified in the federal component state standard general education, are the basis for the development of control measuring materials for the OGE.
According to these requirements, a certain system of knowledge about inorganic and organic substances, their composition, properties and applications is mandatory for assimilation. This system of knowledge, which is based on the Periodic Law and the Periodic Table of Chemical Elements by D.I. Mendeleev, forms the invariant core of all general education programs in chemistry. In the proposed examination paper, it was this content that was the basis for the development of control measurement materials.
Target this manual is to acquaint teachers and students with the structure and content of the examination paper, to give the graduate the opportunity to independently check their readiness for new form chemistry exam - in the form of testing.