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Chemistry. Question Paper

Chemistry.

Course:Secondary Level

Exam Year:2011

1. Define the following terms as used in chemistry 4mks
a. Matter.
b. Mixture
2. State three roles of chemistry in the society 3mks
3. Name two types of flames and state when they are produced 2mks
b. Draw the type of flame produced when air hold is closed 3mks
c. State two disadvantages of the flame drawn 2mks
4. Below are some parts of a bunsen burner. State their functions 5mks
i. Jet
ii. Collor
iii. Rubber tubing
iv. Chimney
v. Base
5a. A form 1 student wanted to heat water in a beaker if was asked not to use a certain flame which flame is this 1mk
b. What is the purpose of flame named above. 1mk
6. Explain why most laboratory apparatus are made of glass 2mks
b. Draw the following laboratory apparatus
volumetric flask 4mks
ii.. Measuring cylinder
c. State the use of 4mks
i. Spatula
ii. Defla grating spoon
iii. Desiccator
iv. Thirtle funnel
7 State 3 types of mixtures 3mks
b.. State the method of separating the following mixtures
i. Sulphur and irons fillings 3mks
ii. Sand and water
iii. Salt and water
c. Name 3 substances which sublimes 3mks
8. Fractional distillation is a method used to separate which type of mixture
b. Name one example of a mixture which can be separated by fractional distillation
c. State 3 applications of fractional distillation
9a. Define a laboratory
b. State 5 laboratory safety rules.

Chemistry. Question Paper

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