JEE Main 2013 — Organic Chemistry

Phenol on heating with $\mathrm{CHCl}_3$ and $\mathrm{NaOH}$ gives salicylaldehyde. The reaction is called:

A compound with molecular mass $180$ is acylated with ${\mathrm{CH}}_{3}\mathrm{COCl}$ to get a compound with molecular mass $390$. The number of amino groups presents per molecule of the former compound 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 :

Arrange the following compounds in order of decreasing acidity : 

An organic compound A upon reacting with ${\mathrm{NH}}_{3}$$_{ }$gives B. On heating, B gives C. C in presence of KOH reacts with Br$_{2}$ to give CH$_{3}$CH$_{2}$NH$_{2}$. A is :

Rate of dehydration of alcohols follows the order:

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

An ether (A), $\mathrm{C}_5 \mathrm{H}_{12} \mathrm{O}$, when heated with excess of hot concentrated $\mathrm{HI}$ produced two alkyl halides which when treated with $\mathrm{NaOH}$ yielded compounds (B) and (C). Oxidation of (B) and (C) gave a propanone and an ethanoic acid respectively. The IUPAC name of the ether (A) is :

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

In Williamson synthesis of mixed ether having a primary and a tertiary alkyl group if tertiary halide is used, then :

Among the following vitamins the one whose deficiency causes rickets (bone deficiency) is :

Which of the following reagent(s) used for the conversion? 

Which of the following compounds is not expected to show Lassaignes' test for nitrogen ?

The major product in the following reaction 

Given  In the above compounds correct order of reactivity in electrophilic substitution reactions will be:

The Wurtz-Fittig reaction involves condensation of:

Cannizaro's reaction is not given by :

Which of the following is the product of aldol condensation?

Amongst the following alcohols which would react fastest with conc. $\mathrm{HCl}$ and $\mathrm{ZnCl}_2$ ?

What is the structure of the major product when phenol is treated with bromine water?

An unknown alcohol is treated with the "Lucas reagent" to determine whether the alcohol is primary, secondary or tertiary. Which alcohol reacts fastest and by what mechanism:

Compound (A), ${C}_{8}{H}_{9}\mathrm{Cl}$, gives a white precipitate when warmed with alcoholic ${\mathrm{AgNO}}_{3}$$_{.}$ Oxidation of (A) gives an acid (B), ${C}_{8}{H}_{6}{O}_{4}$. (B) easily forms anhydride on heating. Identify the compound (A).

Which of the following structures represents thymine ?

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

Which one of the following is most stable ?

Monocarboxylic acids are functional isomers of:

Aryl fluoride may be prepared from arene diazonium chloride using :

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

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 :

Which of the following would not give 2-phenylbutane as the major product in a Friedel-Crafts alkylation reaction ?

Arrange in the correct order of stability (decreasing order) for the following molecules: (I)  (II) (III) (IV)

Carbylamine forms from aliphatic or aromatic primary amine via which of the following intermediates?

Synthesis of each molecule of glucose in photosynthesis involves

Formaldehyde can be distinguished from acetaldehyde by the use of :

Natural glucose is termed D-glucose because :

The order of stability of the following carbocations: 

For which of the following compounds Kjeldahl method can be used to determine the percentage of Nitrogen?

Clemmensen reduction of a ketone is carried out in the presence of :

Glycosidic linkage is actually an :

The order of basicity of amines in gaseous state is :