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Question 1 of 30
1. Question
A metallic element X forms an ion X2+, what will be the formula of the tetraoxosulphate of X?
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Question 2 of 30
2. Question
When air is passed through alkaline pyragallol, the component of air absorbed by the pyragallol is
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Question 3 of 30
3. Question
When water drops are added to calcium carbide in a container and the gas produced is passed thorough jet and lighted, the resultant flame is called an
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Question 4 of 30
4. Question
If the relative formula mass of a hydroxide M(OH)3 is 78gmol-1,
What is the relative atomic mass, M?CorrectIncorrect -
Question 5 of 30
5. Question
An ion with a single negative charge becomes an atom by
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Question 6 of 30
6. Question
CH3COOH + CH3OH â CH3COOCH3 + H2O
The reaction represented by the equation above is
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Question 7 of 30
7. Question
The metal extracted from Bauxite is
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Question 8 of 30
8. Question
An atom of an element represented by AxX with A = 17 and Z = 8
How many neutrons does X contain?CorrectIncorrect -
Question 9 of 30
9. Question
What type of oxide is aluminum oxide?
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Question 10 of 30
10. Question
Excess ethanol reacts with acidified KMnO4 to form?
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Question 11 of 30
11. Question
What is the value of X in the reaction below?
23892U â X90Th
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Question 12 of 30
12. Question
Two gas cylinders contain ethylene and acetylene respectively, one test which can be used to distinguish between them is by passing each gas through dilute potassium permanganate solution
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Question 13 of 30
13. Question
Brass and bronze are both metallic alloys, which of the following constituents is common to be alloys
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Question 14 of 30
14. Question
An organic compound has the empirical formula CH2O. What is its molecular formula if its vapour density is 90?
(H = 1, C = 12, O = 16)CorrectIncorrect -
Question 15 of 30
15. Question
A technique that can be used to show that chlorophyll pigment in a mixture of chemical compound is not a single coloured is
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Question 16 of 30
16. Question
Which of the following statements is not true as we move from left to right along the periodic table?
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Question 17 of 30
17. Question
What mass of a divalent metal, M (atomic mass 40) would react with excess hydrochloric acid to liberate 224cm3 of dry hydrogen gas measured at s.t.p. ?  (GMV = 22.4dm3)
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Question 18 of 30
18. Question
Which of the following is an acid salt?
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Question 19 of 30
19. Question
An element with atomic number twelve is likely to be
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Question 20 of 30
20. Question
The approximate volume of air containing 10cm3 of oxygen is
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Question 21 of 30
21. Question
Duralumin consist of aluminum, copper and ____
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Question 22 of 30
22. Question
Sodium hydroxide solution can be conveniently stored in a container made of
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Question 23 of 30
23. Question
The energy change accompanying the addition of an electron to a gaseous atom is called
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Question 24 of 30
24. Question
50 cm3 of hydrogen is sparked with 20 cm3 of oxygen at 100ÂșC and 1 atmosphere. The total volume of the residual gases is
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Question 25 of 30
25. Question
The molarity of 2% by weight of aqueous solution of H2SO4
(Molecular weight of 98)CorrectIncorrect -
Question 26 of 30
26. Question
Alkanoic acids have volatility compound with alkanols because
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Question 27 of 30
27. Question
How many Faradays of electricity are required to deposit 0.20 mole of nickel if 0.10 Faraday electricity deposited 2.98g of nickel, during electrolysis its aqueous solution is? (Ni =58 , 1F = 96500 mol-1)
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Question 28 of 30
28. Question
In the process of silver plating of a metal M, the metal M is the
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Question 29 of 30
29. Question
When a gas is compressed at a very low temperature
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Question 30 of 30
30. Question
Oxidation of concentrated hydrochloric acid with manganese(IV) oxide liberates a gas used in the
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