Jamb Chemistry Past Questions and Answers

Question 2241:

• JAMB 2022

Addition of charcoal to the filter bed of sand during water treatment for township supply is to?

A. Prevent goiter
B. Prevent tooth decay
C. Remove odour
D. Kill germs

Question 2242:

• JAMB 2022

Using the metal activity series, the metal that can liberate hydrogen gas from steam is?

A. Iron
B. Copper
C. Tin
D. Lead

Question 2243:

• JAMB 2022

An organic compound with fishy smell is likely to have a general formula?

A. RCONHR\(^1\)RCONH\(_2\)
B. RNH\(_2\)
C. RCOR\(^1\)

Question 2244:

• JAMB 2022

N\(_2\)O\(_4\) ⇔ 2NO\(_2\) (Δ = -ve)
From the reaction above, which of these conditions would produce the highest equilibrium yield for N\(_2\)O\(_4\)?

A. Low temperature and high pressure
B. Low temperature and low pressure
C. High temperature and low pressure
D. High temperature and high pressure

Question 2245:

• JAMB 2022

Zn + 2HCL → ZnCl\(_2\) + H\(_2\)
What happens to zinc in the above reaction?

A. Oxidized
B. A reactant
C. Reduced
D. A metal