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Which of the following is NOT true about "yield"? a. The value of the actual yield must be given in order for the percent yield to be calculated. b. The percent yield is the ratio of the actual yield to the theoretical yield. c. The actual yield may be different from the theoretical yield because reactions do not always go to completion. d. The actual yield may be different from the theoretical yield because insufficient limiting reagent was used.

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Which of the following is NOT true about "yield"? a. The value of the actual yield must be given in order for the percent yield to be calculated. b. The percent yield is the ratio of the actual yield to the theoretical yield. c. The actual yield may be different from the theoretical yield because reactions do not always go to completion. d. The actual yield may be different from the theoretical yield because insufficient limiting reagent was used.

The correct answer is:
 d. The actual yield may be different from the theoretical yield because insufficient limiting reagent was used.

Answer:

Explanation:

The choices of a, b, c and d are correct about "yield". For choice d, while insufficient limiting reagent will affect both actual and theoretical yield, it is not an explanation of the difference between actual and theoretical.

So the answer is d.

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