Jamb Chemistry 2018 Past Questions and Answers

Question 81:

• JAMB 2018

The general formula of alkanones is

A. RCHO
B. R\(_2\)CO
C. RCOOH
D. RCOOR

Question 82:

• JAMB 2018

The alkanoic acid found in human sweat is

A. CH\(_3\)-COOH
B. CH\(_3\)—CH\(_2\)—COOH
C. H-COOH
D. CH\(_3\)

Question 83:

• 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 84:

• 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 85:

• JAMB 2018

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

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