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Swali 3 Ripoti
Compound with the general formula CnH\(_{2n+2}\) belong to the_______ group
Swali 4 Ripoti
The scientist who discovered the zig-zag movement of gas molecules is
Maelezo ya Majibu
Swali 5 Ripoti
Which of the following statements is NOT correct of group VII elements? They
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Swali 7 Ripoti
Which of the following salt solutions will have a pH greater than 7?
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Swali 8 Ripoti
The rate of a reaction usually increases with increase in the concentration of reactants because the
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Swali 10 Ripoti
\( ^{235}_{92}U + ^1_0n → ^{145}_{56}Ba + ^{88}_{36}Kr + 3^1_0n + Energy \)
The equation above represent a/an
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Swali 12 Ripoti
Which of the following non-metals reacts most readily with metals?
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Swali 16 Ripoti
The empirical formula of a hydrocarbon containing 0.12 mole of carbon 0.3 mole of hydrogen is
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Swali 18 Ripoti
In the electrolysis of dilute tetraoxosulphate (VI) acid using platinum electrodes, the products obtained at the anode are cathode respectively are
Maelezo ya Majibu
Swali 20 Ripoti
If the volume of a gas at 35°C is 60cm3, what would be its volume in cm3 at 273k?
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Swali 21 Ripoti
The green house effect is a climatic condition associated with the presence of excess
Maelezo ya Majibu
Swali 22 Ripoti
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]
Maelezo ya Majibu
Swali 23 Ripoti
Brain tumors can be located by using an isotope of
Swali 25 Ripoti
Which of the following gases is absorbed from the air dun photosynthesis?
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Swali 26 Ripoti
The following compounds decolorize acidified potassium tetraoxomanganate (VII) solution EXCEPT
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Swali 27 Ripoti
C\(_6\)H\(_{12}\)O\(_6\)
What is the molar mass of the compound above?
[ H=1, C=12, O=16 }
Swali 28 Ripoti
How many atoms of chlorine are required to saturate the double bonds of a compound containing a triene?
Maelezo ya Majibu
Swali 29 Ripoti
The percentage composition of a hydrocarbon is 79.2 carbon 20.8 hydrogen. Calculate its empirical formula [H = 1, C = 12]
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Swali 30 Ripoti
The process involved in the decomposition of sugar by an enzyme is called
Swali 31 Ripoti
The relationship between equilibrium constant and free energy change is represented as
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Swali 33 Ripoti
A colourless gas with characteristics odour which dissolves in water to form an alkaline solution is
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Swali 36 Ripoti
Which of the following compounds will undergo thermal dissociation?
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Swali 39 Ripoti
When air is passed through alkaline pyrogallol and then lime water, the gases left are
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Swali 42 Ripoti
The reaction of an alkanol with alkanioc acid is known as
Swali 44 Ripoti
During the extraction of iron in the blast furnance, slag is produced using
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Swali 46 Ripoti
Two elements X and Y with electronic configurations 2,8,2 and 2,8,7 respectively, are likely to combine by _________bonding
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Swali 47 Ripoti
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]
Maelezo ya Majibu
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