Jamb Chemistry Past Questions and Answers

Question 2176:

• JAMB 2021

The process or act of extracting a metal from its ore and refining it is called?

A. Extraction
B. Metal mining
C. Mettallurgy
D. Prospecting

Question 2177:

• JAMB 2021

The compounds made up of only carbon and hydrogen are called?

A. Carbon compounds
B. Hydrocarbons
C. Atoms
D. Carbon hydrolysis

Question 2178:

• JAMB 2021

The metal used to recover copper from a solution of copper sulphate is?

A. Na
B. Ag
C. Hg
D. Fe

Question 2179:

• JAMB 2021

The nucleus of an atom consists of?

A. Electrons and neutrons
B. Electrons and protons
C. Protons and neutrons
D. None of the above

Question 2180:

• JAMB 2021

A solution contains 20g of solute in 180g of solvent. If the solvent is water, what is the concentration of the solution in terms of mass by mass percentage

A. 11.%
B. 22.2%
C. 10%
D. 20%