Gce Model Questions Vol1 2021 Chemistry Question 38
Practice objective / multiple choice question 38 from the 2021 Gce Model Questions Vol1 Chemistry examination.
Isobutyric acid (2‑methylpropanoic acid, molar mass 88 g mol⁻¹) is converted to its acid chloride with excess thionyl chloride and then reacted with aniline (molar mass 93.13 g mol⁻¹) to give the corresponding amide. If 5.00 g of the acid and 6.00 g of aniline are used, (a) identify the limiting reagent, (b) calculate the theoretical mass of the amide product (molar mass 163 g mol⁻¹), (c) a laboratory isolation yields 5.20 g of product; compute the percent yield, and (d) state the functional group present in the product and explain why an IR absorption near 1650 cm⁻¹ is observed.
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About This Question
This is Gce Model Questions Vol1 2021 Chemistry Question 38. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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