Chemistry Past Questions and Answers

Question 4396 :

• JAMB 2022

Zn + 2HCL → ZnCl\(_2\) + H\(_2\)
What happens to zinc in the above reaction?

A. Oxidized
B. A reactant
C. Reduced
D. A metal

Question 4397 :

• JAMB 2022

An organic functional group which can likely decolorize ammoniacal silver nitrate is?

A. Alkene
B. Alkane
C. Alkyne
D. Alkanol

Question 4398 :

• JAMB 2022

A colored gas that is known to be poisonous and can readily damage the mucous lining of the lungs is?

A. Hydrogen sulphide
B. Carbon(ii)oxide
C. Chlorine
D. Sulphur(iv)oxide

Question 4399 :

• JAMB 2022

In order to electroplate spoon with silver, the arrangement of the electrolytic cell is?

A. The anode is a silver rod and the cathode is the spoon
B. The anode is the spoon and the cathode is a silver rod
C. The electrolyte is silver trioxonitrate(v)( solution and the cathode is a silver rod.
D. The electrolyte is silver trioxonitrate(v) solution and the anode is the spoon

Question 4400 :

• JAMB 2022

An organic compound which decolorizes bromine water is likely to be?

A. C\(_3\)H\(_8\)
B. C\(_2\)H\(_6\)
C. C\(_4\)H\(_10\)
D. C\(_2\)H\(_4\)