2018 - JAMB Chemistry Past Questions and Answers - page 4
If 1 litre of 2.2M sulphuric acid is poured into a bucket containing 10 litres of water and the resulting solution mixed thoroughly, the resulting sulphuric acid concentration will be
In the shown experiment (Fig. 1) the litmus paper will initially
The boiling of fat and aqueous caustic soda is referred to as
Which of the following pairs of substances will react further with oxygen to form a higher oxide?
In the preparation of oxygen by heating KCIO, in the presence of MnO\(_2\) only moderate heat is needed because the catalyst acts by \(_2\)
Methanoic acid mixes with water in all proportions and has about the same boiling point as water. Which of the following methods would you adopt to obtain pure water from a mixture of Sand, water and methanoic acid?
A quantity of electricity liberates 3.6g of Silver from its salt. What mass of aluminium Will be liberated from its salt by the same quantity of electricity? [Al = 27, Ag = 108].
Suitable reagents for the laboratory preparation nitrogen are
The number of electrons in the valence shell of an element of atomic number 14 is?
What volume of oxygen will remain after reacting 8cm of hydrogen gas with 20cm of oxygen gas