Question 4386:

• JAMB 2022

How many neutrons are present in atom with mass number and atomic number 37 and 17 respectively?

A. 18
B. 20
C. 37
D. 17

Question 4387:

• 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 4388:

• 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 4389:

• 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 4390:

• JAMB 2022

A chemical widely used as a fertilizer is?

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