Metals and their compounds - Jamb Chemistry Past Questions and Answers

Question 131:

• JAMB 2018

Elements P, Q, R, S have 6, 11, 15, 17 electrons respectively, therefore,

A. P will form an electrovalent bond with R
B. Q will form a covalent bond with S
C. R will form an electrovalent bond with S
D. Q will form an electrovalent bond with S

Question 132:

• JAMB 2018

The ionic radii of metals are usually

A. Greater than their atomic radii
B. Unaffected by the charge on the ion
C. The same as their atomic radii
D. Less than their atomic radii

Question 133:

• JAMB 2018

Which of these alloys contains copper?

A. Solder
B. Steel
C. Permallory
D. Bronze

Question 134:

• JAMB 2018

H\(_2\) S\(_{(g)}\) + Cl\(_{2(g)}\) → 2HCl\(_{(g)}\) + S\(_{(g)}\) In the reaction above, the substance that is reduced is

A. H\(_2\)S
B. S
C. HCl
D. Cl\(_2\)

Question 135:

• JAMB 2018

Which of the compounds is composed of Al, Si, O and H?

A. Epson salt
B. Limestone
C. Clay
D. Urea