Chemistry 2010 Jamb Past Questions and Answers

Question 21 :

• JAMB 2010

Which of the following salts is slightly soluble in water?

A. AgCl
B. CaSO₄
C. Na₂CO₃
D. PbCl₂

Question 22 :

• JAMB 2010

6AgNO_4(aq) + PH_3(g) + 3H₂O_(l) → 6Ag_(s) + H₃PO_3(g) + 6HNO_3(aq)
In the above reaction, the reducing agent is

A. HNO_3(aq)
B. H₂O_(l)
C. PH_3(g)
D. AgNO_3(aq)

Question 23 :

• JAMB 2010

The IUPAC nomenclature of the compound LiAlH₄ is

A. Lithiumtetrahydridoaluminate (III)
B. Aluminium tetrahydrido lithium
C. Tetrahydrido lithium aluminate (III)
D. Lithium aluminium hydride

Question 24 :

• JAMB 2010

Iron can be protected from corrosion by coating the surface with

A. Gold
B. Silver
C. Copper
D. Zinc

Question 25 :

• JAMB 2010

What quantity of aluminium is deposited when a current of 10A is passed through a solution of an aluminium salt for 1930s?
[Al = 27, F = 96500 C mol ^-1]

A. 0.2 g
B. 1.8 g
C. 5.4 g
D. 14.2 g