Jamb Chemistry Past Questions and Answers

Question 1606:

• JAMB 2011

The arrangement of particles in crystal lattices can be studied using

A. X - rays
B. γ - rays
C. α - rays
D. β - rays

Question 1607:

• JAMB 2011

From the diagram above, find the amount of solute deposited when 200 cm\(^3\) of the solution is cooled from 55°C to 40°C.

A. 0.10 mole
B. 0.20mole
C. 0.01 mole
D. 0.02 mole

Question 1608:

• JAMB 2011

The importance of sodium aluminate (III) in the treatment of water is to

A. Cause coagulation
B. Neutralize acidity
C. Prevent goitre and tooth decay
D. Kill germs

Question 1609:

• JAMB 2011

What type of bond exits between an element X with atomic number 12 and Y with atomic number 17?

A. Electrovalent
B. Metallic
C. Covalent
D. Dative

Question 1610:

• JAMB 2011

Hardness of water is mainly due to the presence of

A. Calcium hydroxide or magnesium hydroxide
B. Calcium trioxocarbonate (IV) or calcium tetraoxosulphate (VI)
C. Sodium hydroxide or magnesium hydroxide
D. Calcium chloride or sodium chloride salts