passwella.
Menu

JAMB Chemistry 2019 past questions and answers

2 questions. Try each one, then open the answer to check yourself and read the explanation.

Question 7

Periodic Table

Use the section of the periodic table below to answer this question.
Which of the letters indicate an alkali metal and a noble gas respectively?

Diagram for this question
  1. A.M and E
  2. B.G and E
  3. C.R and L
  4. D.G and L
Show the answer and explanation

Answer: D (G and L)

Explanation

G has atomic number 3 (lithium, an alkali metal in Group 1) and L has atomic number 2 (helium, a noble gas).

Open this question

Question 8

Periodic Table

Use the section of the periodic table below to answer this question.
Which letter represents a non-metal that is a solid at room temperature?

Diagram for this question
  1. A.T
  2. B.R
  3. C.J
  4. D.X
Show the answer and explanation

Answer: A (T)

Explanation

T has atomic number 16, which is sulphur: a yellow solid non-metal. J (oxygen) is a gas and R (aluminium) is a metal.

Open this question