Question

Which of the following example is not correctly matched?

• A. Two most abundant element -Fe, Al.
• B. Two metals which occur in native state -Au, Pt.
• C. Two metals which can occur in combined and native state both - Zn, Fe.
• D. None of these.

Answer 1

Answer: (C)

Two metals which can occur in combined and native state both - Zn, Fe.

• A few elements like carbon, sulphur, gold, and noble gases, occur in the free state while others are found in combined forms in the earth’s crust.
  
• Elements vary in abundance. Among metals, aluminium is the most abundant. Iron is the second most abundant metal in the earth’s crust. It forms a variety of compounds and their various uses make it a very important element. It is one of the essential elements in biological systems as well.
• $Fe$ and $Zn$ is not available in both combined and native state and hence option C is the correct answer.