Waec Chemistry Past Questions For Year 2015
Question 1
The negatively charged particle in an atom is the
- A. Electron
- B. Neutron
- C. Positron
- D. Proton
Question 2
A metallic ion Z2+ with an inert gas structure contains 18 electrons. How many protons are contained in this ion?
- A. 20
- B. 18
- C. 16
- D. 2
Question 3
The shape of a molecule of water is _______?
- A. Non-linear
- B. Octahedral
- C. Pyramidal
- D. Tetrahedral
Question 4
The compound formed between 14X and 16Y is _______?
- A. XY
- B. XY2
- C. X2Y
- D. X4Y6
Question 5
The Van der waals' forces are dominant intermolecular forces in_______?
- A. Ammonium chloride
- B. Chlorine
- C. Sodium chloride
- D. Water
