In the preparation of which of the following gases is Kipps apparatus used?
Catalytic hydrogenation of benzene produces
Hydration of ions in solution is associated with
The acid anhydride that will produce weak acid in water is
Who discovered the charge on an electron?
In a given homologous series, successive members differ in their relative molecular mass by:
The constituent common to duralumin and alnico is
Which of the following gases contains the least number of atoms at s.t.p?
The best technique for separating the components of a dye is _____
What volume of water will be added to 10dm3 of 2moldm−3 to obtain 0.5moldm−3 solution?
Which of the following is a fine chemical?
If the difference in electronegativity of elements P and Q is 3.0, the bond that will be formed between them is
A compound that gives a brick−red colour to a non−luminous flame is likely to contain _____
In the electrolytic extraction of calcium from calcium chloride, the cathode is _____
Aldehydes differ from ketones in their:
A particle that contains 9 protons, 10 neutrons and 10 electrons is a
An important ore of aluminium is _____
Which of the following will have the least melting point?
The use of hydrogen gas to fill balloons for both meteorological and other scientific purposes is limited by its _____
When chlorine Is passed into water and the resulting solution exposed to sunlight, the product formed are
What are The separation techniques involved in obtaining pure alum from powdered mixture of alum and sand?
Given that M is the mass of substance deposited in an electrolysis and Q the quantity of electricity consumed, then Faraday's law can be written as
For a reaction to occur spontaneously,
The element X that can combine with oxygen to form an oxide of the form XO2 is _____
The number of Faradays required to deposit 156g of potassium from its salt is _____
[K = 39]
The method commonly used in the preparation of insoluble salts is:
Diamond cannot be used
The condition required for corrosion to take place is the presence of
The industrial preparation of hydrogen gas from water gas is referred to as
Alkanones are generally obtained by the oxidation of
The ability of carbon to form long chains is referred to as:
In electrovalent liquids, the rate of evaporation is usually _____
Ethanol reacts with methanoic acid to give an:
The colour of litmus in an alkaline medium is
The presence of impurity in a substance will cause the melting point to _____
The alkanol obtained from the production of soap is _____
The ideal gas laws and equations are true for all gases at:
Naming of the organic compound CH3(CH2)4CH2CH2NH2:
An example of homogeneous mixture is:
Ethanoic acid is
