5070_s06_qp_1 - revisedeck

5070_s06_qp_1

A paper of Chemistry, 5070

Questions:

40

Year:

2006

Paper:

1

Variant:

0

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1

The table gives data about four substances. Which substance has particles in a disorderly arrangement at room temperature?

12. Experimental techniques and chemical analysis → 12.4. Separation and purification

10. Chemistry of the environment → 10.1. Water

1. States of matter → 1.1. Solids, liquids and gases

Open

2

Which gas has the slowest rate of diffusion?

1. States of matter → 1.2. Diffusion

11. Organic chemistry → 11.3. Fuels

Open

3

An excess of calcium hydroxide is added to an acidic soil. What happens to the pH of the soil?

7. Acids, bases and salts → 7.1. The characteristic properties of acids and bases

Open

4

Which test could be used to show that a sample of water is pure?

10. Chemistry of the environment → 10.1. Water

Open

5

Hydrogen can form both H+ ions and H– ions. Which statement about these two ions is correct?

2. Atoms, elements and compounds → 2.4. Ion and ionic bonds

2. Atoms, elements and compounds → 2.5. Simple molecules and covalent bonds

Open

6

Which graph shows the number of electrons in the outer shell of an atom, plotted against the proton number for the first ten elements in the Periodic Table?

2. Atoms, elements and compounds → 2.2. Atomic structure and the Periodic Table

Open

7

The symbols and electronic structures for some elements are shown...

3. Stoichiometry → 3.1. Formulae

2. Atoms, elements and compounds → 2.6. Giant covalent structures

Open

8

Substance X conducts electricity when in the solid state. X reacts with hydrochloric acid. Which substance could X be?

9. Metals → 9.4. Reactivity series

4. Electrochemistry → 4.1. Electrolysis

Open

9

Rubidium is in Group I and bromine is in Group VII of the Periodic Table. How is a compound formed between rubidium and bromine?

8. The Periodic Table → 8.3. Group VII properties

11. Organic chemistry → 11.5. Alkenes

Open

10

2 dm3 of aqueous sodium hydroxide of concentration 5 mol / dm3 were required for an experiment. How many moles of sodium hydroxide were needed to make up this solution?

3. Stoichiometry → 3.3. The mole and the Avogadro constant

Open

11

An 8 g sample of oxygen atoms contains the same number of atoms as 16 g of element X. What is the relative atomic mass, Ar, of X?

3. Stoichiometry → 3.2. Relative masses of atoms and molecules

2. Atoms, elements and compounds → 2.3. Isotopes

3. Stoichiometry → 3.3. The mole and the Avogadro constant

Open

12

The apparatus shown...

4. Electrochemistry → 4.1. Electrolysis

12. Experimental techniques and chemical analysis → 12.1. Experimental design

Open

13

Which pair of substances act as reducing agents in the blast furnace?

9. Metals → 9.6. Extraction of metals

6. Chemical reactions → 6.4. Redox

10. Chemistry of the environment → 10.3. Air quality and climate

Open

14

Two cells were set up as shown...

4. Electrochemistry → 4.1. Electrolysis

8. The Periodic Table → 8.1. Arrangement of elements

Open

15

The equation below shows an exothermic reaction. Mg+ 2HCl→ MgCl 2+ H2Which statement about this exothermic reaction is not correct?

5. Chemical energetics → 5.1. Exothermic and endothermic reactions

9. Metals → 9.4. Reactivity series

Open

16

The diagram shows the energy profile for a chemical reaction. energy reactants products EA H progress of reaction What is the correct description of the reaction?

5. Chemical energetics → 5.1. Exothermic and endothermic reactions

6. Chemical reactions → 6.2. Rate of reaction

Open

17

In the Contact process for making sulphuric acid, one step involves the oxidation of sulphur dioxide as shown...

6. Chemical reactions → 6.3. Reversible reactions and equilibrium

Open

18

Which statement about conduction of electricity is correct?

4. Electrochemistry → 4.1. Electrolysis

Open

19

Which change is an example of oxidation?

6. Chemical reactions → 6.4. Redox

Open

20

Which cation, on reaction with aqueous sodium hydroxide, forms a precipitate that dissolves in excess sodium hydroxide?

12. Experimental techniques and chemical analysis → 12.5. Identification of ions and gases

7. Acids, bases and salts → 7.3. Preparation of salts

Open

21

Which of the following is a reaction of dilute sodium hydroxide?

6. Chemical reactions → 6.3. Reversible reactions and equilibrium

9. Metals → 9.4. Reactivity series

Open

22

The equation for one method of making copper carbonate is shown...

4. Electrochemistry → 4.1. Electrolysis

10. Chemistry of the environment → 10.1. Water

Open

23

A lump of element X can be cut by a knife. During its reaction with water X floats and melts. What is X?

9. Metals → 9.4. Reactivity series

8. The Periodic Table → 8.1. Arrangement of elements

9. Metals → 9.1. Properties of metals

Open

24

Which deduction about the element astatine, At, can be made from its position in Group VII?

8. The Periodic Table → 8.3. Group VII properties

8. The Periodic Table → 8.1. Arrangement of elements

Open

25

Which atom has the same electronic configuration as the strontium ion?

2. Atoms, elements and compounds → 2.2. Atomic structure and the Periodic Table

8. The Periodic Table → 8.1. Arrangement of elements

2. Atoms, elements and compounds → 2.3. Isotopes

Open

26

Rubidium is in Group I of the Periodic Table. What are properties of rubidium chloride?

8. The Periodic Table → 8.2. Group I properties

7. Acids, bases and salts → 7.3. Preparation of salts

8. The Periodic Table → 8.1. Arrangement of elements

Open

27

Iron pipes corrode rapidly when exposed to sea water. Which metal, when attached to the iron, would not offer protection against corrosion?

9. Metals → 9.5. Corrosion of metals

Open

28

Metal carbonates decompose when heated. Which carbonate is most stable to heat?

9. Metals → 9.4. Reactivity series

12. Experimental techniques and chemical analysis → 12.5. Identification of ions and gases

7. Acids, bases and salts → 7.1. The characteristic properties of acids and bases

Open

29

The apparatus shown...

12. Experimental techniques and chemical analysis → 12.1. Experimental design

1. States of matter → 1.1. Solids, liquids and gases

3. Stoichiometry → 3.3. The mole and the Avogadro constant

Open

30

From your knowledge of the manufacture of both aluminium and iron, what is the order of chemical reactivity of aluminium, carbon and iron towards oxygen?

9. Metals → 9.4. Reactivity series

9. Metals → 9.6. Extraction of metals

Open

31

The molar heat of combustion, i.e. the heat given out when one mole of the alcohol is completely burned in oxygen, of a number of alcohols is given below. alcohol formula heat of combustion kJ / mol methanol CH3OH ethanol C2H5OH propanol C3H7OH butanol C4H9OH How many carbon and hydrogen atoms would there be in an alcohol that has a molar heat of combustion of 3900 kJ / mol?

11. Organic chemistry → 11.6. Alcohols

3. Stoichiometry → 3.3. The mole and the Avogadro constant

Open

32

The diagram shows processes that take place in the manufacture of ammonia. substance W substance X hydrogen nitrogen ammonia cracking fractional distillation catalyst Y What are substances W and X and catalyst Y?

11. Organic chemistry → 11.5. Alkenes

6. Chemical reactions → 6.3. Reversible reactions and equilibrium

Open

33

Element R reacts with oxygen to form a gas, T. T changes the colour of damp litmus paper from blue to red. T is used to kill bacteria in the preservation of dried fruit. What is R?

6. Chemical reactions → 6.4. Redox

12. Experimental techniques and chemical analysis → 12.5. Identification of ions and gases

Open

34

The gases coming from a car’s exhaust contain oxides of nitrogen. How are these oxides formed?

10. Chemistry of the environment → 10.3. Air quality and climate

6. Chemical reactions → 6.3. Reversible reactions and equilibrium

Open

35

The table shows pollutants and their possible effects. Which line is not correct?

10. Chemistry of the environment → 10.3. Air quality and climate

10. Chemistry of the environment → 10.1. Water

Open

36

A student investigated the reaction of different vegetable oils with hydrogen. 100 cm3 of hydrogen was passed through 1 g samples of vegetable oils containing a suitable catalyst. The volume of hydrogen remaining after each reaction was recorded. vegetable oil volume of hydrogen remaining / cm3 P Q R S Which vegetable oils are unsaturated?

11. Organic chemistry → 11.3. Fuels

11. Organic chemistry → 11.5. Alkenes

Open

37

In the polymerisation of ethene to form poly, which of the following does not change?

11. Organic chemistry → 11.8. Polymers

11. Organic chemistry → 11.3. Fuels

Open

38

In which pair of macromolecules are the linkages the same?

11. Organic chemistry → 11.8. Polymers

Open

39

The structures of four organic compounds are shown...

8. The Periodic Table → 8.3. Group VII properties

11. Organic chemistry → 11.2. Naming organic compounds

Open

40

Which polymer would hydrolyse to amino acids?

11. Organic chemistry → 11.8. Polymers

Open