Post Utme Chemistry Questions
Question 266:
An atom with electronic configuration 2,8,7 belongs to:
- A Group one elements
- B Group two elements
- C Group zero elements
- D Group seven elements
Question 267:
In the reaction below:<br/>2SO₂(g) + O₂(g) ⇌ 2SO₃(g)<br/>Decreasing the temperature favours formation of:
- A Catalyst decomposition products
- B Oxygen gaseous reactant
- C Sulfur dioxide reactant
- D Sulfur trioxide product
Question 268:
Covalent bonding mainly involves:
- A Transfer of neutrons
- B Removal of nuclei
- C Gain of protons
- D Sharing of electrons
Question 269:
In the equilibrium reaction:<br/>H₂(g) + I₂(g) ⇌ 2HI(g)<br/>Adding more hydrogen gas causes equilibrium to shift toward:
- A Iodine gas production
- B Reverse gaseous reaction
- C Hydrogen iodide formation
- D Catalyst decomposition direction
Question 270:
The number of neutrons in an atom with mass number 39 and atomic number 19 is:
- A 19 neutron particles
- B 39 neutron particles
- C 58 neutron particles
- D 20 neutron particles