EVALUATION TEST OF CHEMISTRY

EVALUATION TEST FOR RSBI CLSSS P1 SERANG

CHEMICAL CHANGES

1. The rusting of iron is a chemical change. Besides iron, which chemical are needed?

I. Carbon dioxide

II. Hydrogen

III. Oxygen

IV. Water

A. I and IV

B. II and III

C. III and IV

D. All of these

2. Which of the following is not a pollution effect caused by burning fuels?

A. Acid rain

B. Greenhouse effect

C. Lead pollution

D. Nitrate pollution

3. Respiration is chemical reaction which releases energy from food. Which of the following is true about the gaseous reactants and products in this reaction?

A.

No	Reactant	Product (s)
1 2 3 4	Oxygen Water vapor Carbon dioxide Carbon dioxide	Carbon dioxide and water vapor Oxygen and hydrogen Water vapor Oxygen , water vapor

4. Glass is produced by chemical reaction between which three substances when they are heated together?

A. Clay, limestone and soda

B. Clay, limestone and sand

C. Clay, sand and soda

D. Limestone, sand and soda

5. In which of these reactions could electricity cause a chemical change? Passing electricity through

A. Acidified water

B. Copper metal

C. Crude oil (petroleum)

D. Salt crystals

6. Which word equation correctly slows how limestone undergoes thermal decomposition upon strong heating?

A. Calcium oxide --- calcium + oxygen

B. Calcium carbonate --- calcium + carbon dioxide

C. Calcium carbonate ---- Calcium oxide + Carbon dioxide

D. Calcium carbonate ---- calcium dioxide + carbon dioxide

7. Energy transfers accompany chemical reactions. Which of these energy changes could occur during chemical changes?

I. Electricity

II. Heat

III. Light

IV. Sound

A. 1 only

B. II and III

C. II, III, and IV

D. All of these

8. Which of these chemical reaction is an oxidation?

A. Decomposing limestone by heating it to form lime

B. Combustion of natural gas

C. Photosynthesis in plant

D. Neutralization of acid and alkali

9. Which of the following statements is not matter?

A. Dust

B. Sound

C. Steam

D. Shark

10. Which of the following statement are not physical properties?

A. Color and shape

B. Boiling point

C. Melting point

D. Metal to react with oxygen

11. Which of the following statement are not candle physical properties?

A. It can melt

B. shape not fixed

C. It has fixed volume

D. It has solidity

12. Which of the following statement are not water physical properties?

A. It has boiling point

B. It has shape volume

C. It has melting point

D. It can evaporate

13. Which of these is not a method of separation?

A. Dissolving

B. Crystallization

C. Evaporation

D. Filtration

14. Which of these could not be separated by filtration?

A. Sugar and water

B. Sand and water

C. Chalk and water

D. Sulphur and water

15. Which of these mixtures could be separated by magnetic attraction?

A. Copper and gold coins

B. Iron and magnesium ribbon

C. Silver and aluminum foil

D Aluminum and zinc pins

16. The most suitable method of obtaining pure water from sea water is

A. Crystallization

B. Distillation

C. Evaporation

D. Filtration

17. Which of the following statement is chemical change?

A. Freezing

B. Boiling

C. Sublimation

D. rusty iron

18. Examples of a chemical reaction are

A. Vaporized gasoline

B. Melted iron

C. Photosynthesis

D. Sugar that dissolve in the water

B. Essay

11. Make chemical reaction!

A. Calcium and chlorine---- calcium chloride

B. Natrium chloride ---- natrium + chlorine

C. oxide Iron + Carbon ---- Iron + Carbondioxyda

D. Glucose + Oxygen ---- Carbondioxyda + water

E. Photosynthesis reaction