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.
Elements with high ionization energies would-------
lose electrons easily
have large atomic radii
have high effective nuclear charges
have low atomic numbers
Correct answer is C
No explanation has been provided for this answer.
The collision between ideal gas molecules are considered to be perfectly elastic because
they collide without losing energy
they move randomly in a straight line
their average kinetic energy is variable
the distance between them is large compared to their size
Correct answer is A
No explanation has been provided for this answer.
P and T are increased
both T and P are decreased
T is increased and P is decreased
T is decreased and P is increased
Correct answer is C
No explanation has been provided for this answer.
Consider the structure above How many carbon atoms does the parent chain contain?
5
4
3
2
Correct answer is B
Going by the longest continuous carbon chain, the parent chain contains 4 carbon atoms (2- methyl butanoic acid)
When CuSO\(_{4(aq)}\) is added to Pb(NO\(_{3}\))\(_{2(aq)}\)--------
there would be no visible change
a blue precipitate would be formed
the resulting solution would become colourless
a white precipitate would be formed
Correct answer is D
No explanation has been provided for this answer.