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Question

Six molecules each of A2 (blue) and B2 (red), as shown in the figure above, are allowed to react until all of the limiting reactant has been consumed. The balanced equation for the reaction is:
2A2+B22A2B
Which of the following correctly identifies the limiting reactant and predicts the number of A2B molecules that will be produced?
528693_26d2a623258747a18db32c2d85bc46b0.png

A
A2 is limiting; 4A2B molecules will form.
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B
A2 is limiting; 6A2B molecules will form.
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C
B2 is limiting; 4A2B molecules will form.
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D
B2 is limiting; 6A2B molecules will form.
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Solution

The correct option is B A2 is limiting; 6A2B molecules will form.
Here in the above reaction A2 is limiting reagent A2 is totally consumed when the chemical reaction is complete. The amount of product formed is limited by this reagent.Since the reaction can not continue without A2

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