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

Which of the following molecules is linear in shape?

A. CH₄

B. H₂O

C. NH₃

D. H₂S

E. CI₂

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

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%

A WEAK ACID IS ONE WHICH

A. IS NOT CORROSIVE

B. IS SLIGHTLY IONIZIED IN WATER

C. DOES NOT PRODUCE SALTS WITH ALKALIS

D. DOES NOT CONDUCT AN ELECTRIC CURRENT IN AQUEOUS SOLUTION

E. FORMS ACID SALTS WITH BASES

Which of the following species is always present in acidified water?

A. NH⁺₄

B. O ^2-

C. HCI

D. H³O⁺

E. HNO₃