43
What is the percentage by mass of copper in copper in copper (l) oxide (CU2O)? [O = 16; CU =64]
- A. 88.9%
- B. 80.0%
- C. 66.7%
- D. 20.0%
- E. 11.1%
44
Which of the following cannot be deduced from the electronic configuration of a transition metal?
- A. Possession of magnetic property
- B. Ability to form complex ions
- C. Position in the Periodic Table
- D. Variable oxidation states
- E. Physical properties of the metal
45
Which of the following molecules is linear in shape?
- A. CH4
- B. H2O
- C. NH3
- D. H2S
- E. CI2
46
If a solid has a low melting point and dissolves readily in benzene, it would probably
- A. contain strong electrostatic forces of attraction
- B. conduct electricity in the molten state
- C. dissolve in water
- D. have covalent bonding
- E. absorb moisture on exposure to air