2016-11-30 True or False Questions (3 points for participation, 8 points for correct answers)
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1. The QCS-01 wide-temperature sulfur-resistant shift catalyst belongs to the cobalt-molybdenum series. Before sulfidation, its main active components, Co and Mo, exist in the sulfide form. ( )2. The explosive limit of carbon monoxide in air is 17.5–50.3%. Wrong, wrong
1. Error. 【Oxidation state】----------2, Incorrect. 【The explosive limit of carbon monoxide in air is 12%-74.5%】