Mine Gases - No. 15
Questions and answers taken from PowerPoint Presentations found on this site.

Progress Indicator:
Question 1 of 20

1.  What is hydrogen sulfide?

  1. A colorless, odorless, incombustible gas.
  2. A poisonous gas, yellow in color which is combustible.
  3. It is a poisonous, combustible, colorless gas having a taste and odor like rotten eggs.
  4. A non-poisonous, combustible gas with an odor like rotten eggs.

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