Jamb Chemistry Past Questions and Answers

Question 2041:

• JAMB 2018

The elements in the periodic table are listed in order of increasing

A. Relative atomic number
B. Atomic mass
C. Relative isotopic mass
D. Nuclear charge

Question 2042:

• 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 2043:

• JAMB 2018

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

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

Question 2044:

• JAMB 2018

When large hydrocarbon molecules are heated at high temperature in the presence of a catalyst to give smaller molecules, the process is known as

A. Disintegration
B. Polymerization
C. Cracking
D. Degradation

Question 2045:

• JAMB 2018

In the removal of water hardness, permutit is regenerated with a strong solution of

A. NaOH
B. Na\(_3\)SO\(_4\)
C. Na\(_3\)CO\(_3\)
D. NaCl