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 of the following halogens is the most reactive?
F2
Br2
l2
Cl
Correct answer is A
No explanation has been provided for this answer.
Which of the following reactions is not feasible?
Cl2 + 2Kl → 2KCI + I2
Cl2 + 2NaF → 2NaCI + F2
Zn + CuCI2 ZnCl2 + Cu
Zn + 2AgNO3 → Zn(NO3)2 + 2Ag
Correct answer is B
No explanation has been provided for this answer.
In the Periodic Table, the elements that loss electrons most readily belong to
Group 1 A
Group 11 A
Group 111 A
Group V11 A
Correct answer is A
No explanation has been provided for this answer.
Which of the following properties increases down a group in the Periodic Table?
Atomic radius
Electronegativity
Electon affinity
Ionization energy
Correct answer is A
No explanation has been provided for this answer.
gaining two electrons
losing two electrons
sharing two electrons
gaining two protons
Correct answer is B
No explanation has been provided for this answer.