Q. Brass gets discoloured in air due to constant exposure in presence of:

  • (A) Hydrogen sulphide
  • (B) Aluminium phosphide
  • (C) Hydrogenated wafers
  • (D) Aluminium sulphide
✅ Correct Answer: (A) Hydrogen sulphide

Published by Ram Sharma ⭐ 193.88K Points at 08-Mar-2022 06:52 pm in Chemistry

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