Chemical Reactions

When calcium salt of adipic acid is heated a cyclic ketone is formed. cyclic ketones may be readily converted into the corresponding cycloalkanes by means of the Clemmensen reduction.

Ethyl isopropyl ketone will not respond to iodoform test as it lacks methyl keto group ( group
All the ketones except ethyl isopropyl ketone gives iodoform test as they contain methyl keto group.

Acetic acid on reduction with lithium aluminiumhydride gives ethyl alcohol while on reduction with and red gives
ethane

Hence, reagent and are respectively and .

(i)
(ii)
(iii)

The reduction of group to by is called Dakin reaction.
Thus, the above reaction is Dakin reaction.

Wacker process is used for the preparation of acetone.

In Claisen condensation intermolecular
condensation of esters containing a-hydrogen atom in presence of strongbase produce - keto ester.

Due to stronger- -effect of than that of should be more acidic than But actually reverse is true. This is due to : left after the removal of a proton from is stabilised due to presence of d-orbitals in than: left after the removal of a proton from which is not stabilised due to the absence of d-orbitals on .

Product D cannot be obtained by the dehydration of the given alcohol as it will involve one tert carbocation into second tert carbocation. There is no significant difference in the stability of these carbocations. These two carbocations are shown below.

Addition of a proton at results in the formation of tropylium carbocation (an aromatic species with more stability due to delocalisation of electrons), thus, it is the most reactive site towards protonation.
Addition of proton at any other carbon atom, interupt in the delocalisation of electrons by disturbing planarity of molecules and hence, makes it less stable. Thus, these all are less reactive towards protonation.

transfers , an electrophile, to form hexadeuterobenzene.

Schotten-Baumann Conditions
The use of added base to drive the equilibrium in the formation of amides from amines and acid chlorides.

Alkylhalide formation in the reaction of
alcohol with undergoes reaction in which formation of the carbocation as intermediate occurs. Stability of carbocation is greatest for due to resonance effect, and stability of tertiary carbocation is greater than the secondary carbocation

Correct answer is (d)

1-Bromopropane undergoes nucleophilic substitution with hydroxide ion ( ) to form an alcohol. The reaction follows an mechanism because halides undergo substitution. The reaction is: Thus, the major product is propan-1-ol. The correct answer is: