Question

7. Acetic acid can be protonated by H2SO4.
+
H2SO4
2 Possib
(Hint: T
H₂C
ОН
Acetic acid
Draw the structures of the two possible products of protonation and
b. Which of the two structures is more stable? Explain. (5 marks)​

Answer 1

Answer:the answer of a with drawing

b

Structure (II) is less stable than structure (I) because later carries separation of positive and negative charges. Therefore, contribution of structure (II) is less than that of (I) towards the resonance hybrid of compound (A), i.e., CH3COOH. ... Therefore, structure (B) is more stable than structure (A)(A) i.e., CH3COOΘ.

• answer a
• the protonation of water by sulfuric acid:

H2SO4 + H2O ⇌ H3O+ + HSO−

4

b:the protonation of isobutene in the formation of a carbocation:

(CH3)2C=CH2 + HBF4 ⇌ (CH3)3C+ + BF−

4

c:the protonation of ammonia in the formation of ammonium chloride from ammonia and hydrogen chloride:

1. NH3(g) + HCl(g) → NH4Cl(s)