Learn more about the properties, composition, and structure of substances (elements and compounds) with these Chemistry questions and answers. This Test can be used by students preparing for Chemistry in JAMB, WAEC, NECO or Post UTME.
which contains protons and neutrons
which is positively charged
which is massive and can cause deflection of a few projectiles
which is very large and in which close to 98% of projectiles pass undeflected
Correct answer is C
Rutherford's account of Nuclear theory does not include the fact that atoms contain a massive region and cause deflection of from projectiles.
SO\(_3\) is an acidic gas
Acid is usually added to water and not water to acid
The reaction between SO\(_3\) and water is violently exothermic
SO\(_3\) does not dissolve readily in water
Correct answer is C
No explanation has been provided for this answer.
Which of the following is a set of neutral oxides?
N\(_2\)O, H\(_2\)O, CO
N\(_2\)O, SO\(_2\), CO
N\(_2\)O, Na\(_2\)O, ZnO
N\(_2\)O, SO\(_3\), NO
Correct answer is A
No explanation has been provided for this answer.
Which process(es) is/are involved in the turning of starch iodide paper blue-black by chlorine gas?
chlorine attacks the starch to give the blue-black color
chlorine attacks the iodide ion to give the blue-black color
chlorine oxidizes the iodide ion to produce iodine which attacks the starch to give the blue-black color
iodine attacks the starch to give the blue-black color
Correct answer is C
No explanation has been provided for this answer.
When chlorine water is exposed to bright sunlight, the following products are formed
HCl\(_{(aq)}\) and Cl\(_2\)
HOCl\(_{(aq)}\) and Cl\(_2\)
HCl\(_{(aq)}\) and O\(_2\)
HOCl\(_{(aq)}\) and O\(_2\)
Correct answer is C
No explanation has been provided for this answer.