JEE Main 2013 — Organic Chemistry

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

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 :

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

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

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 :

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 :

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:

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

Arrange the following compounds in order of decreasing acidity : 

Aryl fluoride may be prepared from arene diazonium chloride using :

Cannizaro's reaction is not given by :

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

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

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).

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

Formaldehyde can be distinguished from acetaldehyde by the use of :

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

Glycosidic linkage is actually an :

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 :

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

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

Monocarboxylic acids are functional isomers of:

Natural glucose is termed D-glucose because :

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

Rate of dehydration of alcohols follows the order:

Synthesis of each molecule of glucose in photosynthesis involves

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

The major product in the following reaction 

The order of basicity of amines in gaseous state is :

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

The order of stability of the following carbocations: 

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

The Wurtz-Fittig reaction involves condensation of:

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

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

Which of the following is the product of aldol condensation?

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

Which of the following structures represents thymine ?

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

Which one of the following is most stable ?