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Chemistry Question Paper

Chemistry

Course:Secondary Level

Institution: Mock question papers

Exam Year:2011

1. Draw a set of apparatus you would use to collect
a. A gas lighter than air
b. A has denser than air
2. Name two common drying agents used in drying gases in the laboratory
3 draw a lit bumpem burner
a.name the flames produced
b. Label the parts
c. State the hottest part of the flame.
4a. What are miscible liquids
b. Give an example of a pair of miscible liquids
c. Draw the apparatus you would use to separate the of liquids named in b
5. Define the following terms
i. Melting point
ii.boiling point
iii. Sublimation
iv. Distilation
6. Give an example of
a. Temporary change
b. Permanent change
7. State grahams law of diffusion
8. 100cm3 of gas x takes 3 seconds to diffuse through a porous plug where as 300cm3 of oxyget gas takes 120 seconds calculate the relative molecular mass of gas x
9. Write down the general formula of the hydrocarbonr
what would be observed if few drops of acidified potassium parmaganate was reacted with any of the above hydro catbons
50marks

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