Question

Consider the following reaction sequence and mark the incorrect option(s):
$\underset{\left(\text{2 mol}\right)}{\text{Cyclohexene}}\underset{\Delta }{\overset{conc.H_{2}S{O}_4}{\to }}\underset{\left(\text{1 mol}\right)}{A}\underset{KI{O}_4}{\overset{Os{O}_4}{\to }}\underset{\left(\text{2 mol}\right)}{B}\underset{\Delta }{\overset{dil.NaOH}{\to }}\underset{\left(\text{1 mol}\right)}{C}$

• A. A on reductive ozonolysis gives B
• B. B and C both give a positive 2,4-DNP test
• C. Both A and C have the same degree of unsaturation
• D. B gives Tollens' test while C does not

Answer 1

Answer: (C), (D)

The correct options are
C Both A and C have the same degree of unsaturation
D B gives Tollens' test while C does not


(a) $Os{O}_4/KI{O}_4$ reagents furnish same product what reductive ozonolysis gives.

(b) Both B and C are ketones which can give 2,4-DNP test.

(c) A has 3 degrees of unsaturation while C has 4 degrees of unsaturation.

(d) Both B and C cannot give Tollen's test.