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.
In metallic solid, the forces of attraction is between the mobile valence electrons and the
atoms
neutrons
negative ions
positively charged nuclei
Correct answer is D
No explanation has been provided for this answer.
Which of the following bond types is responsible for the high boiling point of water?
Metallic bond
Covalent bond
lonic bond
Hydrogen bond
Correct answer is D
The high boiling point is due to the breaking of the intermolecular force called Hydrogen bond.
In which of the following series are the atoms arranged in order of increasing ionization energy?
Li, Na K
B, Be, Li
O, F, Ne
Be, mG, Ca
Correct answer is C
The ionization energy increases across the period. It increases up the group.
In the periodic table, alkaline earth metals can be found in group
l
ll
VI
VII
Correct answer is B
No explanation has been provided for this answer.
Which of the following halogens is liquid at room temperature?
lodine
Chlorine
Bromine
Fluorine
Correct answer is C
Bromine is a reddish-brown liquid at room temperature.