08 Beijing summer exam chemistry examination questions

1. The fuel used for the torch of the Beijing Olympic Games is a common fuel, and its molecular formula is

It is C3H8 and belongs to

A. Alkanes B. Olefins

C. alkynes D. aromatic hydrocarbons

2. Uranium is an important raw material for the nuclear industry, which has attracted extensive attention from the international community. The number of neutrons in u nucleus is

143 C.235 D.327

June 26th every year is World Anti-Drug Day. Among the following substances, those that do not belong to drugs are

A. marijuana B. ice C. heroin D. baking soda

4. In the following groups of substances, allotropes are

A.O2 and O3 B.CO and CO2 C.H2O and H2O2 d.Mg and Mg.

5. Among the following substances, those insoluble in water are

A.N2 B.HCl C.CO2 D.NH3

6. Which of the following substances are strong electrolytes?

A.h2ob.sodium chloride C.ammonia? H2O·D·ch 3c ooh

7. In a chemical reaction, the concentration of reactant A changes from 0.8 mol/L to 0.2 mol/L within 10 s, and then, after that,

The chemical reaction rate of a in 10 s is

A.0.02 mol/L. B.0.02 mol/(L? s)

C.0.06 mol/L. D.0.06 mol/(L? s)

Chemistry Examination Paper Volume I Page 1 (Page ***3)

8. For the primary battery composed of zinc, copper and dilute sulfuric acid (as shown on the right), the following statements are relevant.

What is incorrect is that

A.Zn is the negative electrode and B. Cu is the positive electrode.

C. the oxidation reaction takes place at the negative electrode D. the oxidation reaction takes place at the positive electrode.

9. In the structure diagram of the following particles, sodium atoms are composed of

10. Sugar is the main energy source of human body. Among the following saccharides, those that belong to polymer compounds are

A. starch B. sucrose C. maltose D. glucose

1 1. Among the following substances, the most violent reaction with hydrogen is

A.F2 B.Cl2 C.Br2 D.I2

12. Among the following instruments, the ones that can be used for direct heating are

A. beaker B. test tube C. flask D. conical flask

13. Among the following substances, only the valence bond of * * * is

A.HCl B.NaCl C.K2S D.NaOH

14. Most materials in daily life are synthetic materials. The following substances are not synthetic materials, they are

A. plastic B. cotton C. synthetic fiber D. synthetic rubber

15. The laboratory often keeps concentrated nitric acid in brown reagent bottle, because concentrated nitric acid has the following characteristics.

A. strong acidity B. corrosion C. strong oxidation D. instability

16. Both X and Y are short-period elements, with two electrons in the outermost layer of X atom and six electrons in the outermost layer of Y atom. The chemical formula of the common compound formed by these two elements is

A.XY B.XY2 C.X2Y D.X2Y3

17. Among the following reagents, NaCl, NH4Cl and FeCl3 can be distinguished.

A.HNO 3 solution B. Barium chloride solution

C. sodium hydroxide solution

18. It can react with hydrochloric acid and sodium hydroxide solution in ①KOH, ②Al(OH)3 and ③H2SO4.

be

A.①②③ B.② and ③ C.① and ③ D. ② only.

19. Cellulose is widely used in production and life. In the following statements about the properties of cellulose, it is true.

A.it is sweet. B.it's decreasing.

C. when dissolved in water, hydrolysis can occur.

Chemistry Examination Paper Volume 1 Page 2 (* * * Page 3)

20. The following statement about SO2 is correct.

The molar mass of A.A.SO2 is 64 grams.

The mass of B.B. 1 mol SO2 is 64g/mol.

C. 1 mol SO 2 contains about 6.02× 1023 molecules.

D the volume of 1 mol SO2 is 22.4 L at normal temperature and pressure.

2 1. Simple silicon and its compounds have always played a major role in the field of materials. In the following statement, it is incorrect.

A. it can be used to make handicrafts in time.

B. simple silicon can be used to make solar cells.

C. Simple silicon is the main raw material for making glass.

D. silicon dioxide is the material for making optical fibers.

22. Among the following reactions, the redox reaction is

A.2 H2O2 2 H2O + O2 ↑

B.FeO + 2 HCl == FeCl2 + H2O

C.KOH + HNO3 == KNO3 + H2O

D.CuCl2 + 2 NaOH == Cu(OH)2 ↓ + 2 NaCl

23. In the following ionic equation, the writing is incorrect.

A. the reaction between iron and hydrochloric acid: Fe+2h+= = Fe2++H2 =

B the reaction of marble with dilute hydrochloric acid: co+2h+= = CO2 =+H2O.

C. mix sodium bicarbonate solution and sodium hydroxide solution: HCO+OH-== CO+H2O.

D, mixing the copper sulfate solution and the barium hydroxide solution:

Cu2 ++ SO+Ba2 ++ 2oh-= = Cu(OH)2↓+baso 4↓

24. In the following statement, it can be used to judge the metal strength of elements.

A alkalinity of hydrate corresponding to the highest valence oxide of the element.

B the acidity of the hydrate corresponding to the highest valence oxide of the element.

C. 1 mol how many electrons will be lost when a simple metal reacts with an acid?

D. 1 mol What is the volume of hydrogen released by the reaction of simple metal with water?

25. The following statement is incorrect.

A. All ions containing metal elements are not necessarily cations.

B the reaction between anions and cations does not necessarily produce ionic compounds.

C metal elements must be oxidized when they change from free state to combined state.

When nonmetallic elements change from a chemical state to a free state, they must be reduced.

Chemistry Examination Paper Volume 1 Page 3 (* * * Page 3)

—————————————————————————

Draft paper

Beijing 2008 Summer Ordinary High School Graduation Examination

Chemistry examination paper

Volume 2 (non-machine-readable volume ***50)

examination

grow

must

Yes 1. Candidates should carefully fill in the county name, school name, name, admission ticket number, examination room number and seat number in the sealed line.

2. The second volume includes three major themes and four pages in total. Before answering questions, you should carefully examine the questions, see the requirements of the questions clearly, and answer them seriously as required.

3. When answering questions, the handwriting should be neat and the paper should be neat.

4. When answering questions, you must use a blue-black signature pen, pen or ballpoint pen.

Total score of the first, second and third place

mark

Marker

observer

Possible relative atomic mass: h-1c-12n-14o-16na-23mg-24.

Al -27s-32cl-35.5 Fe -56ag- 108

Scorer 1. Fill in the blanks (***22 points)

1.(3 points) The water gas used in some cities is obtained by the reaction of coke and steam at high temperature;

C+H2O Company+H2. In this reaction, the substance as oxidant is (fill in chemical formula) and the substance as reductant is (fill in chemical formula); If 1 mole of carbon monoxide is generated in the reaction, 1 mole of H2O is consumed.

2.(3 points) In three salt solutions: ①KCl, ②NH4Cl, ③Na2CO3, the ones that are acidic at room temperature are

(Fill in serial number, the same below), neutral and alkaline.

Chemistry Examination Paper Volume II Page 1 (page ***4)

3.(4 points) There are the following four substances: ① ethylene, ② acetic acid, ③ starch and ④ protein. Among them, purple litmus test solution can turn red (fill in the serial number, the same below); What can make the carbon tetrachloride solution of bromine fade is

; When it meets iodine solution, it is blue; What turns yellow in concentrated nitric acid is.

4.(4 points) Vitamin C mainly exists in vegetables and fruits, which can increase the body's resistance to diseases. The simple structure is as follows

Please answer:

The molecular formula of (1) vitamin C is, and the name of the functional group containing no oxygen in its molecule is.

(2) The chemical reactions that can occur with vitamin C are (fill in the serial number).

① Addition reaction ② Oxidation reaction ③ Esterification reaction

(3) Drop the purple litmus test solution into the aqueous solution of vitamin C, and the test solution turns red, indicating that it is an aqueous solution of vitamin C..

5.(8 points) There are four kinds of short-period elements: X, Y, Z and W, and their atomic radius and principal valence are shown in the following table.

Element X Y Z W

Atomic radius/nanometer 0.1860.0740.1020.077

Main price+1 -2 -2, +6 -4, +4.

Please answer:

The position of (1)W in the periodic table of elements is.

(2) The simple substance W can react with the concentrated solution of the hydrate of the highest valence oxide corresponding to Z, and the chemical properties of its reaction.

The equation is.

(3)X2Y2 can react with WY2. If the number of electrons transferred in the reaction is 3.0 1× 1023, the volume of gas product is (standard condition).

(4)X, Y and Z can form a compound with a mass ratio of 5.75: 8: 4. The operation method and related experimental phenomena of detecting anions in compounds in laboratory are as follows: Take a small amount of solution containing the anions to prove that the original solution contains the anions.

Chemistry Test Paper II Page 2 (* * * Page 4)

Scoring reviewer

Second, the experimental questions (***20 points)

6.(4 points) The device for reacting copper with concentrated sulfuric acid is shown in the right figure.

Please answer:

(1) The name of instrument A is.

(2) The chemical equation of the reaction between copper and concentrated sulfuric acid is.

(3) The reaction reflects the concentration of concentrated sulfuric acid (fill in the serial number).

① Oxidation ② Reduction

(4) After the reaction, it can be observed that the magenta solution changes from red to color.

7.(8 points) In the process of exploring the reaction between sodium metal and water (as shown below), students in an extracurricular group recorded the following experimental phenomena and conclusions:

(1) generating alkali; ② The solution turns red; (3) sodium wandering around; (4) Sodium floats on the water.

⑤ The density of sodium produced by gas is smaller than that of water. ⑤ The reaction of sodium melting Liang Cheng sphere is exothermic, and the melting point of sodium is low.

Please fill in the blanks in the table below (choose from ① to ⑧ and fill in the serial number):

Experimental phenomena ⑦ ③

Experimental conclusion ⑥ ①

8.(8 points) Chlorine and ammonia can react when mixed at room temperature. In order to explore the reaction between pure chlorine and dry chlorine and ammonia, an extracurricular group of students designed the following devices.

Please answer:

(1) The ionic equation of the reaction in device F is.

(2) reagents contained in device d and their functions.

Chemistry Test Paper II Page 3 (* * * Page 4)

(3) Among the following equipment, the one that can replace equipment A is (fill in serial number).

(4) If the tail gas escaping from G of device C contains a small amount of Cl2, in order to prevent it from polluting the environment, the tail gas can be passed through a gas washing cylinder.

Shooter III. Calculation problem (***8 points)

9.(4 points) Fully react 0.5 liter of 2 mol hydrochloric acid with sufficient silver nitrate solution. Trial calculation:

What is the amount of (1) silver chloride?

(2) What is the mass of nitric acid?

10.(4 points) Modern life is inseparable from aluminum. In industry, aluminum is extracted from bauxite.

(1) Dissolve a certain amount of bauxite samples (mainly Al2O3) in excessive dilute hydrochloric acid to make a 500 mL solution. Take 100 mL of this solution and determine that it contains five ions (H+, Cl-, Mg2+, Al3+ and Fe3+). Number concentration of substances with known partial ions:

C (H+) = 0.02 mol/L c (Mg2+) = 0.0 1 mol/L.

C (Fe3+) = 0.02mol/L c (Cl-) = 0.52/L.

The mass of Al2O3 in bauxite samples is g (accurate to 0.0 1).

(2) Aluminum reacts with iron oxide at high temperature, which can be used in ironmaking (aluminothermic process) in industry. A certain amount of aluminum is dissolved in a sufficient amount of NaOH solution, and the volume of gas produced is L (standard condition). If equal mass of aluminum reacts with iron oxide, the amount of iron-containing substances is (expressed by algebraic expression containing A).

Chemistry Test Paper II Page 4 (* * * Page 4)

Beijing 2008 Summer Ordinary High School Graduation Examination

Answers to Chemistry Test Paper and Reference for Grading

Note: If the candidate's answer is different from this answer, if the answer is reasonable, the score may be given as appropriate, but it shall not exceed the score specified in the original question.

The first volume (***50 points)

Multiple choice questions (2 points for each small question, ***50 points)

The title is 1 23455 6789 10.

Answer A B D A A B D D C A

The title is11213141516171819 20.

Answer A B A B D A C D D C

Title 2 1 22 23 24 25

Answer C A B A D

Volume II (***50 points)

I. Fill in the blanks (***22 points)

1.(3 points, each 1 min) H2O, c, 1.

2.(3 points, each 1 minute) ②, ①, ③.

3.(4 points, each 1 minute) ②, ①, ③, ④.

4.(4 points, 1 minute per space) (1)C6H8O6 carbon-carbon double bond (2 points)

(2)① ② ③ ( 1)

(3) Acid (1)

5.(8 points, 2 points in each space) (1) IVA family in the second cycle (2 points)

(2) C+2H2SO4 (concentrated) CO2 =+2SO2 =+2H2O (2 points)

(3)5.60 liters (2 points)

(4) If white precipitate occurs, add hydrochloric acid and barium chloride solution (2 points).

Second, the experimental questions (***20 points)

6. (4 points per grid, 1 minute)

(1) test tube

(2)Cu+2 H2SO4 (concentrated) CuSO4+SO2 =+2H2O

(3)①

(4) None

Please refer to page 1 for the answers and scores of the chemistry test paper (page ***2).

7.(8 points)

Experimental phenomenon ④

(2 points) ②

(2 points)

Experimental conclusion ⑧

(2 points) (5)

(2 points)

8.(8 points)

(1) MnO2+4h+2cl-Mn2++Cl2 =+2h2o (2 points)

(2) concentrated sulfuric acid drying chlorine (2 points)

(3)① ③ (2 points)

(4) Sodium hydroxide solution (2 points)

Three, the calculation problem (***8 points)

9.(4 points) (1) solution: HCl+AgNO3 = = HNO3+AgCl ↓ (1 min)

1 mol

0.5 l× 2 mol/l nitrogen nitrate (silver chloride) (1).

N (silver chloride) = (1 point)

(2)m (nitric acid) = (1)

Answer: (omitted)

10.(4 points) (1)3.57 (2 points)

(2) (2 points)

Math:

In 2008, the fifth middle school and the third high school mathematics examination paper.

First, multiple-choice questions (4 points for each question, ***48 points)

The values of 1 and sin3000 are equal to

(A) (B)- (C) (D)—

2. It is known that the inclination of the straight line L is 450, and it passes through the point (-1, 0), then the equation of the straight line L is

x-y+ 1 = 0(B)x-y- 1 = 0(C)x+y+ 1 = 0(D)x+y- 1 = 0

3. The domain of function y= is

(A) (B) (C) (D):

4. Given straight lines A, B, C and plane α, which of the following propositions is correct?

(a) If a ⊥ c and b ⊥ c, then a‖b (B) If a ‖ c and b ‖ c, then a‖b.

(c) If a‖α, b‖α, then a‖b (D) If a ‖α, b? Alpha is a‖b

5. If A, B, C ∈ R, which of the following statements is correct?

(a) If a>b, then a2 & gtB2 (B) If a>b, then ac2 & gtbc2.

(c) if a & gt|b|, then a2 & gtB2 (D) If |a| >b, then a2 & gtb2.

6. Suppose A and B are positive real numbers, a+b= 1, and the maximum value of ab is

(A) 1/2(C) 1(D)2

7, ""means "straight line is parallel to straight line" ()

A. Sufficient and unnecessary conditions B. Necessary and insufficient conditions

C. sufficient and necessary conditions D. neither sufficient nor necessary conditions

8. The probability that a student passes the English listening test is that he has taken it twice in a row. What is the probability that exactly 1 passes?

A.B. C. D。

9. If the eccentricity of the ellipse with the focus on the axis is 0, then m= ()

A.B. C. D。

10. The interval where the function is a subtraction function is ()

A.B. C. D.(0，2)

1 1, omniscient vector │ = 1, │ = 4 and. =2, and the included angle with is

A.B. C. D。

12, if it is equal to ()

A.B. C. D。

Two. Fill in the blanks (4 points for each question, *** 16)

13.(2x- 1x) 6 The constant term in the expansion is (answered by numbers).

14. If the vector is known, then x=.

15. A school has 2000 students, including 500 senior three students. In order to understand the students' physical condition, 200 students were sampled from the school according to the grade. The number of senior three students in the sample is _ _ _ _ _ _ _.

16. The equation of a circle whose center is tangent to a straight line is.

Three. Problem solving: (***36 points)

The sum of 17 and (6 points) becomes three arithmetic progression 15. Add 1, 3, 9 to each item of this series in turn, and it becomes a geometric series. Find these three numbers.

18, (6 points) in, known,,.

(i) the value of;

(ii) the value of.

19, (6 points) As shown in the figure, in a straight triangular prism, the point is the midpoint.

(i) Verification;

(2) Find the cosine of the angle formed by straight lines on different planes.

20(6 points) It is known that there are three red balls and four black balls with the same size in box A, and five red balls and four black balls with the same size in box B. Now take two balls from box A and box B respectively.

(1) Find the probability that all the four balls taken out are red balls;

(2) Find the probability that there are exactly 1 red balls among the four balls taken out;

2 1, (6 points) In the plane rectangular coordinate system, a straight line passing through a point and having a slope has two different intersections with an ellipse, and the range of the sum.

22.(6 points) Set the function to obtain the extreme value when it arrives.

(i) Find the values of a and b;

(ii) If they all hold, find out the range of C. 。