Atomic structure and bonding - Jamb Chemistry Past Questions and Answers

Question 166:

• JAMB 2014

What is the percentage of sulphur in sulphur (IV) oxide?

A. 66%
B. 25%
C. 40%
D. 50%

Question 167:

• JAMB 2014

An element X has electron configuration 1s² 2s² 2p⁶ 3s² 3p⁵. Which of the following statements is correct about the element?

A. Lt has a completely filled p-orbital
B. Lt has 5 electrons in its outermost shell.
C. Lt belongs to group ll on the periodic table
D. Lt is a halogen

Question 168:

• JAMB 2014

If the difference in electronegativity of elements P and Q is 3.0. The bond that will be formed between them is

A. Metallic
B. Covalent
C. Co-ordinate
D. Ionic

Question 169:

• JAMB 2014

How many protons, neutrons and electrons respectively are present in the element 60/27 Co?

A. 27, 33 and 33
B. 33, 27 and 27
C. 27, 33, and 27
D. 60, 33 and 60

Question 170:

• JAMB 2014

The radio active radiation used in studying the arrangement of particles in giant organic molecules is

A. \(\gamma\)- rays
B. \(\alpha\)- particles
C. X-rays
D. \(\beta\) - particles