Jamb Chemistry Past Questions and Answers

Question 1811:

• JAMB 2015

Tartaric acid is used industrially to

A. Make baking powder
B. Make fruit juice
C. Remove rust
D. Dry substance

Question 1812:

• JAMB 2015

P1V1 = P2V2 supports ?

A. Charles’s law
B. Boyles’s law
C. Graham’s law
D. Avogadro’s law

Question 1813:

• JAMB 2015

A fixed mass of gas a volume of 92cm3 at 3°C. When will be its volume at 18C if the pressure remains constant?

A. 15.3cm³
B. 87.3cm³
C. 2.0cm³
D. 97.0cm³

Question 1814:

• JAMB 2015

Which of the following ions requires the largest quantity of electricity for discharge at an electrode?

A. 2.0 mole of Q3⁺
B. 2.5 mole of R2⁺
C. 3.0 mole of T^-
D. 4.0 mole of Y^-

Question 1815:

• JAMB 2015

Hydrogen can be displaced from a lot alkaline solution by

A. Fe
B. Cu
C. Cn
D. Sn