Waec Chemistry 2017 Past Questions and Answers

Question 1:

• WAEC 2017

Which of the following species determines the chemical properties of an atom?

A. Electron
B. Neutron
C. Nucleus
D. Proton

Question 2:

• WAEC 2017

Which of the following species determines the chemical properties of an atom?

A. Electron
B. Neutron
C. Nucleus
D. Proton

Question 3:

• WAEC 2017

The following glasswares are used to measure the volume of liquids EXCEPT

A. Graduated beaker
B. Pipette
C. Test tube
D. Burette

Question 4:

• WAEC 2017

Pauli exclusion principle is related to

A. Quantity of electrons in the valence shell
B. Filling the orbitals with lower energy first
C. The filling of degenerated orbitals
D. Quantum numbers of electrons

Question 5:

• WAEC 2017

The species with no electron in the 3d-orbital is

A. \(Zn^{2+}\)
B. \(Sc^{3+}\)
C. Cu
D. \(Mn\)