Question

An organic compound $X$ give following laboratory tests.
(i) It gives white precipitate with tollen's reagent
(ii) it gives +ve iodoform test
(iii) It gives lucas test within 5 min
$X$ can be:

• A. $H-C\equiv C-(C{H}_2{)}_n-\underset{OH}{\underset{|}{C}H}-C{H}_2-C{H}_3$
• B. $C{H}_3-C\equiv C-\left(C{H}_2\right)n-\underset{OH}{\underset{|}{C}H}-C{H}_3$
• C. $H-C\equiv C-\left(C{H}_2\right)n-\underset{OH}{\underset{|}{C}H}-C{H}_3$
• D. none of the above

Answer 1

The correct option is C $H-C\equiv C-\left(C{H}_2\right)n-\underset{OH}{\underset{|}{C}H}-C{H}_3$

An organic compound $X$ give following laboratory tests.
(i) It gives a white precipitate with Tollen's reagent
(ii) It gives +ve iodoform test
(iii) It gives Lucas test within 5 min
$X$ can be the compound shown by the option $C$.
(i) It indicates the presence of an aldehyde group or presence of $C\equiv C$(ii) It indicates the presence of methyl keto group or a compound that can be easily oxidized to methyl keto group.
(iii) It indicates a presence of secondary alcohol.