A) I and II
B) I and III
C) Only II
D) I and IV
Correct Answer: A
Solution :
Only carboxylic acids and their derivatives like anhydride are capable to give effervescence with aqueous \[\text{NaHC}{{\text{O}}_{\text{3}}}\]solution, because they are more acidic as compared to \[{{\text{H}}_{\text{2}}}\text{C}{{\text{O}}_{\text{3}}}\](carbonic acid). \[\text{II}\,\text{C}{{\text{H}}_{3}}COOH+NaHC{{O}_{3}}\] \[\xrightarrow{{}}C{{H}_{3}}COONa+{{H}_{2}}O+C{{O}_{2}}\] \[\text{I}\,{{\text{(C}{{\text{H}}_{3}}\text{CO)}}_{2}}O+2NaHC{{O}_{3}}\] \[2C{{H}_{3}}COONa+{{H}_{2}}O+C{{O}_{2}}\]You need to login to perform this action.
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