Select the correct statement regarding the above shown reaction.
$(C H_{3})_{3} C - C | H O H - C \equiv C - H H^{\oplus} - ------- \to i s o m e r i s a t i o n P r o d u c t$
$(I)$ $(I I)$

$(I)$ and (II) both react with Lucas reagent.
$(I)$ and (II) give positive tests with Tollen's reagent.
$(I)$ and $(I I)$ both liberate $H_{2}$ gas with sodium metal.
$(I)$ and (II) give positive tests with Fehling's solution.

Question

Select the correct statement regarding the above shown reaction.
$(C H_{3})_{3} C - C | H O H - C \equiv C - H H^{\oplus} - ------- \to i s o m e r i s a t i o n P r o d u c t$
$(I)$ $(I I)$

$(I)$ and (II) both react with Lucas reagent.
$(I)$ and (II) give positive tests with Tollen's reagent.
$(I)$ and $(I I)$ both liberate $H_{2}$ gas with sodium metal.
$(I)$ and (II) give positive tests with Fehling's solution.

Toppr Admin · Accepted Answer

In acidic medium- compound -I- mesmerizes to compound -II- Compound -I- contains a terminal alkyne group and compound -II- contains an aldehyde group- Hence- they give positive test with Tollen-apos-s reagent-

List I	List II
(Compounds)	(Reactions)
(a) $C H_{3} (C H_{2})_{3} N H_{2}$	(i) Alkaline hydrolysis
(b) $C H_{3} C \equiv C H$	(ii) With $K O H$ (alcohol) and $C H C l_{3}$ produces bad smell
(c) $C H_{3} C H_{2} C O O C H_{3}$	(iii) Gives white ppt. with ammoniacal $A g N O_{3}$
(d) $C H_{3} C H (O H) C H_{3}$	(iv) With Lucas reagent cloudiness appears after 5 minutes

In acidic medium, compound (I) mesmerizes to compound (II). Compound (I) contains a terminal alkyne group and compound (II) contains an aldehyde group. Hence, they give positive test with Tollen's reagent.