Which of the following pairs is INCORRECT?
I. haematite: Iron
II. Pitchblende : Copper
III. Monazite: Thorium

Options

A. Only I
B. Only II
C. Only I and II
D. Only I and III

Answer

B

Explanation

Pitchblende is a radioactive, uranium-rich mineral and ore. It has a chemical composition that is largely UO, but also contains UO, and oxides of lead, thorium, and rare earth elements. Commonly referred to as Uraninite, it is known as pitchblende due to its black color and high density.