Which of the following substances are restricted under Restriction of Hazardous Substances (RoHS)?
Each correct Answer represents a complete solution. Choose all that apply.

A.
Mercury (Hg)

B.
Lead (Pb)

C.
Iron (Fe)

D.
Cadmium (Cd)

Explanation:

The following substances are restricted under Restriction of Hazardous Substances (RoHS):
Lead (Pb)
Mercury (Hg)
Cadmium (Cd)
Hexavalent chromium (CrVI)

Polybrominated biphenyls (PBB)
Polybrominated diphenyl ethers (PBDE)
Answer option C is incorrect. Iron (Fe) is not restricted under RoHS.
Reference: “http://www.rohscompliancedefinition.com/”