Hydrocarbons Question 99
Question: When acetylene is passed into dilute sulphuric acid containing $ H{g^{2+}} $ ions, the product formed is [DPMT 1996; Roorkee 1995; BHU 1998; KCET 1999; MP PET 1985, 86; DCE 1999; DPMT 1999, 2002; CPMT 1975, 82, 83, 90; MP PMT 1994, 97; CBSE PMT 1999; AIIMS 2002; CBSE PMT 1999; KCET (Med.) 1999, JIPMER 1999]
Options:
A) Acetone
B) Acetic acid
C) Acetaldehyde
D) Formaldehyde
Show Answer
Answer:
Correct Answer: C
Solution:
$ CH\equiv CH\underset{1 HgSO_4}{\mathop{\xrightarrow{40 H_2SO_4}}}\underset{\text{Vinyl alcohol}}{\mathop{CH_2=CH-OH}} $
$ \xrightarrow{Rearrangement}\ \underset{Acetaldehyde}{\mathop{CH_3-CHO}} $
BETA
