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NDA General Science Chemistry Questions Part 1

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Question : 95

Total: 100

Note the following balanced chemical equation: 2CO+O2⇌CO2 Which one of the following statements is significant in relation to the above chemical equation?

One can add to a vessel only 2 mol of CO for each mol of O2 added
No matter how much of these two reagents are added to a vessel, 1 mol of O2 is consumed
When they react, CO reacts with O2 in a 2 : 1 mol ratio
When 2 mol of CO and 1 mol of O2 are placed in a vessel, they will react to give 1 mol of CO2

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