Question 4391:

• JAMB 2022

On the basis of the electrochemical series, which of these ions will show the greater tendency to be discharged at the cathode in an electrolytic cell

A. Cu\(^{2+}\)
B. Sn\(^{2+}\)
C. Fe\(^{2+}\)
D. Zn\(^{2+}\)

Question 4392:

• 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 4393:

• 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 4394:

• 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 4395:

• 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