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Chemistry - Carbonyl compounds Question with Solution | TestHub

ChemistryCarbonyl compoundsMETHOD OF PREPARATION OF ALDEHYDES AND KETONESHard2 minPYQ_2021
ChemistryHardassertion reason

______grams of3-Hydroxy propanal(MW=74)must be dehydrated to produce7.8 gof acrolein(MW=56)C3H4Oif the percentage yield is64.(Round off to the Nearest Integer).
Given: Atomic masses: C:12.0u, H:1.0u,O:16.0u

Question diagram: ______grams of 3 - Hydroxy propanal ( MW = 74 ) must be dehy
Answer:
16
Solution:

Percentage yield=Experimental yieldTheoritical yield×100

                 % yield=7.8X 56X100x=64            x=7.8 X10056 X64moles Wreactant=780 X7456X64=16.11g

 

Stream:JEESubject:ChemistryTopic:Carbonyl compoundsSubtopic:METHOD OF PREPARATION OF ALDEHYDES AND KETONES
2mℹ️ Source: PYQ_2021

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