Organic Chemistry PYQ — Page 66

In the reaction, ${\text{CH}}_{3} \text{COOH} \overset{{\text{LiAlH}}_{4}}{\rightarrow } \text{A} \overset{{\text{PCl}}_{5}}{\rightarrow } \text{B} \overset{\text{Alc. KOH}}{\rightarrow } \text{C}$, the product C is :

The final product formed when methylamine is treated with ${ \text{NaNO}}_{\text{2}}$ and $\text{HCl}$ followed by hydrolysis is:

The major product formed when 1, 1, 1- trichloropropane is treated with aqueous potassium hydroxide is :

In a set of reactions p - nitrotoluene yielded a product E  The product E would be :

In S$_{N}$2 reactions, the correct order of reactivity for the following compounds : CH$_{3}$Cl, CH$_{3}$CH$_{2}$Cl, (CH$_{3}$)$_{2}$CHCl and (CH$_{3}$)$_{3}$CCl is :

Which one of the following statements is not correct?

On heating an aliphatic primary amine with chloroform and ethanolic potassium hydroxide, the organic compound formed is :

In the Victor-Meyer's test, the colour given by $1^{\circ}, 2^{\circ}$ and $3^{\circ}$ alcohols are respectively:

Tischenko reaction is a modification of:

Complete reduction of benzene-diazonium chloride with $\mathrm{Zn} / \mathrm{HCl}$ gives:

Williamson synthesis of ether is an example of :

The reason for double helical structure of DNA is the operation of :

Which is the major product formed when acetone is heated with iodine and potassium hydroxide?

The major organic compound formed by the reaction of 1, 1, 1 - trichloroethane with silver powder is :

The following reaction  is known as:

The addition of $\mathrm{HI}$ in the presence of peroxide catalyst does not follow anti-Markovnikov's rule because :

Aryl fluoride may be prepared from arene diazonium chloride using :

Rate of dehydration of alcohols follows the order:

A major component of Borsch reagent is obtained by reacting hydrazine hydrate with which of the following ?

 $\mathrm{X} \text { is: }$

A solution of $(-)1-\mathrm{chloro}-1-\mathrm{phenylethane}$ in toluene racemises slowly in the presence of a small amount of SbCl$_{5}$, due to the formation of :

The order of reactivity of the given haloalkanes towards nucleophile is :

In nucleophilic substitution reaction, order of halogens as incoming (attacking) nucleophile is: $\mathrm{I}^{-}>\mathrm{Br}^{-}>\mathrm{Cl}^{-}$ The order of halogens as departing nucleophile should be :

The reaction of phenol with benzoyl chloride to give phenyl benzoate is known as :