Jamb Chemistry Past Questions and Answers

Question 1571:

• 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 1572:

• JAMB 2010

Iron can be protected from corrosion by coating the surface with

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

Question 1573:

• 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

Question 1574:

• JAMB 2010

In which of the following is the entropy change positive?

A. Thermal dissociation of ammonium chloride
B. Reaction between an acid and a base
C. Addition of concentrated acid to water
D. Dissolution of sodium metal in water

Question 1575:

• JAMB 2010

If a reaction is exothermic and there is a great disorder, it means that

A. The reaction is static
B. The reaction is in a state of equilibrium
C. There will be a large increase in free energy
D. There will be a large decrease in free energy