Jamb Chemistry Past Questions and Answers

Question 2236:

• JAMB 2022

The sulphide that is commonly used in coating electric fluorescent tubes is?

A. Iron(ii)Sulphide
B. Tin(ii)sulphide
C. Zinc Sulphide
D. Lead(iv) Sulphide

Question 2237:

• JAMB 2022

An organic compound which liberate carbon(iv)oxide from trioxocarbonate(iv) solution is likely to be?

A. C\(_2\)H\(_5\)OH
B. C\(_3\)H\(_4\)
C. C\(_6\)H\(_6\)
D. CH\(_3\)COOH

Question 2238:

• JAMB 2022

Addition of sodium chloride to water to form a solution would lead to?

A. Increase in freezing point and increase the boiling point
B. Increase in freezing point and decrease the boiling point
C. Decrease in freezing point and decrease the boiling point
D. Decrease in freezing point and increase the boiling point

Question 2239:

• JAMB 2022

A chemical widely used as a fertilizer is?

A. Galena
B. Bauxite
C. Emerald
D. Nitrochalk

Question 2240:

• JAMB 2022

On the basis of the electrochemical series, which of these ions will show the greater tendency to be discharged at the cathode in an electrolytic cell

A. Cu\(^{2+}\)
B. Sn\(^{2+}\)
C. Fe\(^{2+}\)
D. Zn\(^{2+}\)