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Question 1 of 10
1. Question
An element L forms the compounds with chlorine LCl2 LCl3, LCl4. This illustrates the
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Question 2 of 10
2. Question
In an attempt to remove sugar from a beaker containing a quantity of sand, 2M ammoium chloride solution was accidentally added instead of water. Which of the following methods could be used to remove the ammonium chloride form the mixture
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Question 3 of 10
3. Question
A mixture contains 20cm3 of hydrogen, 35cm3 of oxygen 15cm3 of carbon monoxide and 10cm3 of nitrogen at s.t.p. Which of the following gives the mole fraction of hydrogen in the mixture?
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Question 4 of 10
4. Question
An element X has two isotopes, 20X and 22X present in the ratio 1:3 the relative atomic mass of x would be
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Question 5 of 10
5. Question
A certain volume of a gas at 298oC is heated such that its volume and pressure are now four times the original values. What is the new temperature?
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Question 6 of 10
6. Question
A quantity of electricity liberates 3.6g of Silver from its salt. What mass of aluminium will be liberated from its salt by the same quantity of electricity? [Al = 27, Ag = 108].
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Question 7 of 10
7. Question
The IUPAC name for CH3CH2CH/CH3 COOH is …
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Question 8 of 10
8. Question
Which of the following compounds has the highest boiling point?
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Question 9 of 10
9. Question
In the reaction x+y ↔ g+h, the backward reaction is favoured if the concentration of
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Question 10 of 10
10. Question
The carbon atoms in ethane are
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