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Ibeere 2 Ìròyìn
The scientist who discovered the zig-zag movement of gas molecules is
Awọn alaye Idahun
Ibeere 3 Ìròyìn
Which of the following non-metals reacts most readily with metals?
Awọn alaye Idahun
Ibeere 4 Ìròyìn
Which of the following statements is NOT correct of group VII elements? They
Awọn alaye Idahun
Ibeere 6 Ìròyìn
The percentage composition of a hydrocarbon is 79.2 carbon 20.8 hydrogen. Calculate its empirical formula [H = 1, C = 12]
Awọn alaye Idahun
Ibeere 11 Ìròyìn
When air is passed through alkaline pyrogallol and then lime water, the gases left are
Awọn alaye Idahun
Ibeere 13 Ìròyìn
Compound with the general formula CnH\(_{2n+2}\) belong to the_______ group
Awọn alaye Idahun
Ibeere 16 Ìròyìn
The relationship between equilibrium constant and free energy change is represented as
Awọn alaye Idahun
Ibeere 17 Ìròyìn
The green house effect is a climatic condition associated with the presence of excess
Awọn alaye Idahun
Ibeere 18 Ìròyìn
During the extraction of iron in the blast furnance, slag is produced using
Awọn alaye Idahun
Ibeere 19 Ìròyìn
What volume of carbon (IV) oxide in dm 3 is produced at s.t.p. when 2.50g of CaCO3 reacts with excess acid according to the following equation? CaCO3(s) + 2HCI(aq) → CaCl2(aq) + H2O(1) + CO2(g)
[CaCO2 100; molar volume of a gas at s.t.p. = 22.4dm 3]
Awọn alaye Idahun
Ibeere 21 Ìròyìn
\( ^{235}_{92}U + ^1_0n → ^{145}_{56}Ba + ^{88}_{36}Kr + 3^1_0n + Energy \)
The equation above represent a/an
Awọn alaye Idahun
Ibeere 22 Ìròyìn
Which of the following salt solutions will have a pH greater than 7?
Awọn alaye Idahun
Ibeere 24 Ìròyìn
How many atoms of chlorine are required to saturate the double bonds of a compound containing a triene?
Awọn alaye Idahun
Ibeere 25 Ìròyìn
What mass of copper in gram would be deposited by a current of 1.00ampere passing for 965 seconds through copper(II) tertraoxosulphate (VI) solution? [Cu 63.5; If = 96500c]
Awọn alaye Idahun
Ibeere 26 Ìròyìn
A colourless gas with characteristics odour which dissolves in water to form an alkaline solution is
Awọn alaye Idahun
Ibeere 29 Ìròyìn
Which of the following compounds will undergo thermal dissociation?
Awọn alaye Idahun
Ibeere 32 Ìròyìn
C\(_6\)H\(_{12}\)O\(_6\)
What is the molar mass of the compound above?
[ H=1, C=12, O=16 }
Awọn alaye Idahun
Ibeere 35 Ìròyìn
In the electrolysis of dilute tetraoxosulphate (VI) acid using platinum electrodes, the products obtained at the anode are cathode respectively are
Awọn alaye Idahun
Ibeere 37 Ìròyìn
If the volume of a gas at 35°C is 60cm3, what would be its volume in cm3 at 273k?
Awọn alaye Idahun
Ibeere 38 Ìròyìn
The rate of a reaction usually increases with increase in the concentration of reactants because the
Awọn alaye Idahun
Ibeere 41 Ìròyìn
The empirical formula of a hydrocarbon containing 0.12 mole of carbon 0.3 mole of hydrogen is
Awọn alaye Idahun
Ibeere 43 Ìròyìn
Which of the following gases is absorbed from the air dun photosynthesis?
Awọn alaye Idahun
Ibeere 44 Ìròyìn
Two elements X and Y with electronic configurations 2,8,2 and 2,8,7 respectively, are likely to combine by _________bonding
Awọn alaye Idahun
Ibeere 45 Ìròyìn
The process involved in the decomposition of sugar by an enzyme is called
Awọn alaye Idahun
Ibeere 46 Ìròyìn
The following compounds decolorize acidified potassium tetraoxomanganate (VII) solution EXCEPT
Awọn alaye Idahun
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