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Standard 6 :: Science

by Minesh - Sunday, 4th March 2018

Question Solved
Brass gets discoloured in air because of the presence of which of the following gases in air?

A. Oxygen
B. Hydrogen sulphide
C. Carbon dioxide
D. Nitrogen
1 Answers
  • Elijah Jayakumaran
    Sekolah Jenis Kebangsaan (t) Ladang Kinrara
    answered Saturday, 17th March 2018
    Accepted Answer
    a