Jamb Chemistry Past Questions and Answers

Question 1891:

• JAMB 2016

The number of electronic shells contained in an atom with electron configuration 1s²2s²2p⁶3s²3p⁶4s² is

A. 3
B. 2
C. 4
D. 5

Question 1892:

• JAMB 2016

The drying agent suitable for drying ammonia is

A. Calcium Chloride
B. Calcium Oxide
C. Phosphorus(V) Oxide
D. Concentrated H₂SO₄

Question 1893:

• JAMB 2016

The arrangement of particles in crystal lattices can be studied using

A. X-rays
B. \(\beta\)-rays
C. \(\alpha\)-rays
D. \(\gamma\)-rays

Question 1894:

• JAMB 2016

In the extraction of iron, the waste gas from the furnace is a mixture of

A. PH₃ CO and CO₂
B. CO and C
C. N₂ , CO and CO₂
D. PH₃ and CO

Question 1895:

• JAMB 2016

In a neutralization reaction involving HCI and NaOH using litmus as indicator, the colour at the end point is

A. Blue
B. Red
C. Orange
D. Purple