Calculate the volume of 0.5 mol dm-3 H2So4 that is neutralized by 25 cm3 of 0.1 mol dm-3 NaOH
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2010
In the preparation of oxygen by heating KClO3 in the presence of MnO2, only moderate heat is needed because the catalyst acts by
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2010
If a reaction is exothermic and there is a great disorder, it means that
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2010
In which of the following is the entropy change positive?
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2010
What quantity of aluminium is deposited when a current of 10A is passed through a solution of an aluminium salt for 1930s?[Al = 27, F = 96500 C mol -1]
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2010
Iron can be protected from corrosion by coating the surface with
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2010
A constituent common to bronze and solder is
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2010
Which of the following is used in rocket fuels?
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2010
To a solution of an unknown compound, a little dilute tetraoxosulphate (VI) acid was added with some freshly prepared iron (II) tetraoxosulphate (VI) solution. The brown ring observed after the addition of a stream of co…
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2010
2H2(g) + O2(g) → 2H2O(g) ΔH = -veWhat happens to the equilibrium constant of the reaction above if the temperature is increased?
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2010
The graph above demonstrate the effect of
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2010
The IUPAC nomenclature of the compound above is
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2010
The residual solids from the fractional distillation of petroleum are used as
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2010
Stainless steel is used for making
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2010
A compound gives an orange-red colour to non-luminous flame. This compound is likely to contain
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2010
When iron is exposed to moist air, it gradually rusts. This is due to the formation of
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2010
The final products of the reaction between methane and chlorine in the presence of ultraviolet light are hydrogen chloride and
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2010
Which of the following is used to hasten the ripening of fruit?
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2010
Benzene reacts with hydrogen in the presence of nickel catalyst at 180oC to give