Complete reaction of acetaldehyde with excess formaldehyde, upon heating with conc. 
solution, gives 
and 
. Compound 
does not give Tollens' test, whereas 
on acidification gives positive Tollens' test. Treatment of 
with excess cyclohexanone in the presence of catalytic amount of -toluenesulfonic acid (PTSA) gives product
. Sum of the number of methylene groups ( 
) and oxygen atoms in 
is .
Text Solution
Verified by Experts18
(18)
Number of 
groups in 
Number of O-atoms 
Required Answer 
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