Chemistry 2016 Jamb Past Questions and Answers

Question 1 :

• JAMB 2016

In an electrochemical cell, polarization is caused by

A. Oxygen
B. Hydrogen
C. Tetraoxosulphate(IV) acid
D. Chlorine

Question 2 :

• JAMB 2016

In an electrochemical cell, polarization is caused by

A. Oxygen
B. Hydrogen
C. Tetraoxosulphate(IV) acid
D. Chlorine

Question 3 :

• JAMB 2016

The condition required for corrosion to take place is the presence of

A. Oxygen and Carbon (IV) oxide
B. Water and Oxygen
C. Water and Carbon (IV) oxide and Oxygen
D. Water and Carbon (IV) oxide

Question 4 :

• JAMB 2016

The enzyme used in the hydrolysis of starch to dextrin and maltose is

A. Zymase
B. Sucrase
C. Amylase
D. Lactase

Question 5 :

• JAMB 2016

In the laboratory preparation of chlorine from concentrated hydrochloric acid in the presence of potassuim tetraoxomanganate(VII) the produced is dried by passing it through

A. Concentrated tetraoxosulphate (VI) acid
B. Anhydrous calcium chloride
C. Calcium oxide
D. Sodium hydroxide