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QJEEM19Ch3cde: JEE Main 2019 Chemistry - Class 12 JEEM19Ch3cde Solution: In the following reaction Rate of the reaction is the highest…
In the following reaction 
Rate of the reaction is the highest for :

Multiple Choice Options
- A Propanal as substrate and methanol in stoichiometric amount.
- B Acetone as substrate and methanol in stoichiometric amount
- C Propanal as substrate and methanol in excess
- D Acetone as substrate and methanol in excess
Step-by-Step Verified Solution
Steric hindrance of aldehydes is less compares to the ketone that is why aldehydes are more reactive than ketones in nucleophilic addition reactions.
So among propanal and acetone, propanal is suitable as substance.
And to form acetal, excess amount of alcohol is required so here methanol in excess is required.
So among propanal and acetone, propanal is suitable as substance.
And to form acetal, excess amount of alcohol is required so here methanol in excess is required.