Waec Chemistry Past Questions
Question 1441
Which of the following bond types is intermolecular?
- A. Covalent bond
- B. Hydrogen bond
- C. Ionic bond
- D. Metallic bond
Question 1442
Electropositivity of elements across the periodic table normally
- A. remains constant down the group
- B. increases across the period
- C. decreases across the period
- D. decreases down the group
Question 1443
The atom with the electron configuration
1s\(^{2}\)2s\(^{2}\)2p63s\(^{2}\)3p\(^{6}\)3d\(^{10}\)4s\(^{2}\)4p\(^{4}\) is in
- A. period 4, p- block
- B. period 3, p- block
- C. period 4, d- block
- D. period 3, d- block
Question 1444
Which of the following statements about atoms of a metal is correct? They
- A. readily accept electrons
- B. are soft
- C. are held together by covalent bond
- D. are held together by a sea of electron cloud
Question 1445
An oxide has the following properties. It
I. is a white powder
II. reacts with HCI.
III. reacts with NaOH
IV. is insoluble in water
The oxide is
- A. is a white powder
- B. alkaline
- C. amphoteric
- D. acidic
- E. neutral
