Chemistry 2000 Waec Past Questions and Answers

Question 6 :

• WAEC 2000

The type of chemical bond that exists between potassium and oxygen in potassium oxide is

A. Ionic
B. Metallic
C. Covalent
D. Dative

Question 7 :

• WAEC 2000

Which of the following contains co-ordinate covalent bond?

A. HCI
B. CH ₄
C. NH₄
D. Na⁺CI

Question 8 :

• WAEC 2000

Elactrostatic force of attraction between sodium ion and halide ion is greatest in

A. NaCI
B. NaBr
C. NaF
D. NaI

Question 9 :

• WAEC 2000

Which of the following non-metals reacts most readily with metals?

A. Nitrogen
B. Chlorine
C. Sulphur
D. Carbon

Question 10 :

• WAEC 2000

A radioactive solid is best stored

A. Under paraffin oil
B. Under ultraviolet light
C. In a cool, dark cupboard
D. In a box lined with lead