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Question 1 of 10
1. Question
The alkanol obtained from the production of soap is
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Question 2 of 10
2. Question
The flame used by wilders in cutting metals is
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Question 3 of 10
3. Question
Sodium chloride may be obtained from brine by
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Question 4 of 10
4. Question
For the reaction NH4NO2 → N2 + 2H2O, calculate the volume of nitrogen that would be produced at s.t.p from 3.20g of the dioxonitrate(iii) salt
(Relative atomic masses: N=14, O=16, H=1)
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Question 5 of 10
5. Question
A certain volume of a gas at 298K is heated such that the 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
Copper sulphate solution is electrolyzed using platinum electrodes. A current of 0.193 amperes is passed for 2hrs. How many grams of copper are deposited?(Cu = 63.5, F=96500 coulombs)
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Question 7 of 10
7. Question
The general formula of an alkyl halide (where X represents the halide) is
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Question 8 of 10
8. Question
Starch can be converted to ethyl alcohol by
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Question 9 of 10
9. Question
Which of the following substances has the lowest vapour density? (O=16, CL-35, H=1, C=12)
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Question 10 of 10
10. Question
In spite of the electronic configuration,1s22s22p2 carbon is tetravalent because
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