Which of the following acid most reactive towards alcohol?
The esterification of carboxylic acids with alcohols is a kind of nucleophilic acyl substitution. Protonation of the carbonyl oxygen activates the carbonyl group towards nucleophilic addition of alcohol. Therefore, carboxylic acid with less number of electron releasing group most reactive.
Which acid is most reactive towards esterification?
For esterification, the carbonyl carbon of the acid should be more electrophilic for more reactivity. Presence of +I groups like methyl group decrease this reactivity. Hence, HCOOH will be most reactive towards esterification.
Which acid is most reactive?
Cl− as the electron withdrawing group creates more positive charge on CO and is the best leaving group therefore RCOCl is the most reactive acid derivative.
Does HCl react alcohol?
Tertiary alcohols react reasonably rapidly with concentrated hydrochloric acid, but for primary or secondary alcohols the reaction rates are too slow for the reaction to be of much importance. A tertiary alcohol reacts if it is shaken with with concentrated hydrochloric acid at room temperature.
Which alcohol is most reactive towards ch3cooh?
Answer: CH3CH2COOH is most reactive towards esterification as C atom of carboxylic group is stericaly least hindered.
Which is more reactive ester or alcohol?
Under acidic conditions, the reaction mechanism begins with protonation of the carbonyl oxygen which increases the reactivity of the ester. An alcohol then reactions with protonated ester to form the tetrahedral intermediate.
Which carboxylic acid is more reactive?
Different carboxylic acid derivatives have very different reactivities, acyl chlorides and bromides being the most reactive and amides the least reactive, as noted in the following qualitatively ordered list. The change in reactivity is dramatic.
Which one is more reactive alcohol or carboxylic acid?
Only one structure can be drawn for an alkoxide ion, but two structures can be drawn for a carboxylate ion. … A carboxylic acid is, therefore, a much stronger acid than the corresponding alcohol, because, when it loses its proton, a more stable ion results.
Which one of the following carboxylic acid is most reactive towards decarboxylation?
Option 4 is most reactive towards decarboxylation. The structure is of a β keto acid, which forms amuch stable carbanion than any other carboxylate ion.
Is Potassium the most reactive metal?
– Potassium metal has more number of shells compared to sodium and thus it becomes easy to remove one electron from its outermost orbital ( less ionization enthalpy). – So, out of given metals, Potassium is the most reactive metal. Therefore, potassium is the most reactive metal among the given options.
Which metal is more reactive with hydrochloric acid?
Alkaline Earth Metals
These metals — beryllium, magnesium, calcium and strontium — react with hydrochloric acid to form a chloride and free hydrogen.
Is Iron more reactive than zinc?
In a reactivity series, the most reactive element is placed at the top and the least reactive element at the bottom. More reactive metals have a greater tendency to lose electrons and form positive ions .
…
The reactivity series.
| Element | Reaction with dilute acids |
|---|---|
| Magnesium | Quickly |
| Zinc | More slowly |
| Iron | More slowly than zinc |
| Copper | Very slowly |
Which alcohol reacts fastest with HCl?
From amongst the following alcohols the one that would react fastest with conc . HCl and anhydrous ZnCl2, is. 1-Butanol. 2-Butanol.
Why HCl is least reactive towards alcohol?
Acid protonates the alcohol hydroxyl group, making it a good leaving group. … Because the chloride ion is a weaker nucleophile than bromide or iodide ions, hydrogen chloride does not react with primary or secondary alcohols unless zinc chloride or a similar Lewis acid is added to the reaction mixture as well.
What is the formula of ethanol?
C2H5OH