Q. Consider the following statements about Neodymium:
1.It is a metal.
2.It must be stored under vacuum, in inert gas, or in sealed plastic to prevent corrosion because of its reactivity.
Which of the statements given above is/are correct?
Answer: C
Notes:
Explanation: Both are correct
Statement 1 is correct: Neodymium (symbol Nd, atomic number 60) is a ductile and malleable silvery-white metal belonging to the lanthanide series of rare-earth elements. It is classified as a rare-earth element.
Statement 2 is correct: Neodymium oxidizes quickly in air, forming a flaky oxide layer (Nd₂O₃) that easily spalls off, exposing fresh metal to further oxidation. Because of its reactivity, neodymium must be stored under vacuum, in inert gas, or in sealed plastic to prevent corrosion.
Source: Money Control
