JEE Nitrogen-Containing Compounds PYQs, Download PDF

Match the Compounds (List - I) with the appropriate Catalyst/Reagents (List - II) for their reduction into corresponding amines.

Choose the correct answer from the options given below :

Which one of the following reaction sequences will give an azo dye?

For reaction
The correct order of set of reagents for the above conversion is :

Consider the following molecules: Br$$_3$$O$$_8$$, F$$_2$$O, H$$_2$$S$$_4$$O$$_6$$, H$$_2$$S$$_5$$O$$_6$$, and C$$_3$$O$$_2$$.

Count the number of atoms existing in their zero oxidation state in each molecule. Their sum is ____.

'A' is a neutral organic compound $$(M.F : C_{8}H_{9}ON)$$. On treatment with aqueous $$Br_{2}/OH_{(-)}$$, 'A' forms a compound 'B' which is soluble in dilute acid. 'B' on treatment with aqueous $$NaNO_{2} / HCl (0-5^{o}C)$$ produces a compound 'C' which on treatment with $$CuCN/NaCN$$ produces 'D'. Hydrolysis of 'D' produces 'E' which is also obtainable from the hydrolysis of'A'. 'E' on treatment with acidified $$KMnO_{4}$$ produces 'F'. 'F' contains two different types of hydrogen atoms. The structure of 'A' is

The steam volatile compounds among the following are :
(A)

(B)

(C)

(D)

Choose the correct answer from the options given below :

The number of ions from the following that are expected to behave as oxidising agent is : $$Sn^{4+}, Sn^{2+}, Pb^{2+}, Tl^{3+}, Pb^{4+}, Tl^{+}$$

The $$F^-$$ ions make the enamel on teeth much harder by converting hydroxyapatite (the enamel on the surface of teeth) into much harder fluoroapatite having the formula.

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): $$\alpha$$-halocarboxylic acid on reaction with dil. $$NH_3$$ gives good yield of $$\alpha$$-amino carboxylic acid whereas the yield of amines is very low when prepared from alkyl halides.
Reason (R): Amino acids exist in zwitter ion form in aqueous medium.
In the light of the above statements, choose the correct answer from the options given below :

Given below are two statements:
Statement I : Aniline is less basic than acetamide.
Statement II : In aniline, the lone pair of electrons on nitrogen atom is delocalised over benzene ring due to resonance and hence less available to a proton.
Choose the most appropriate option:

Which of the following reaction is an example of ammonolysis?

Given below are two statements, one is labelled as Assertion (A) and other is labelled as Reason (R).
Assertion (R) : Gabriel phthalimide synthesis cannot be used to prepare aromatic primary amines.
Reason : Aryl halides do not undergo nucleophilic substitution reaction.
In the light of the above statements, choose the correct answer from the options given below:

Fluorination of an aromatic ring is easily accomplished by treating a diazonium salt with $$HBF_4$$. Which of the following conditions is correct about this reaction?

Match List I with List II
List I (Amines)                List II (pKb)
A. Aniline                           I. 3.25
B. Ethanamine                II. 3.00
C. N-Ethylethanamine         III. 9.38
D. N,N-Diethylethanamine   IV. 3.29
Choose the correct answer from the options given below:-

X g of ethylamine is subjected to reaction with NaNO₂/HCl followed by water; evolved dinitrogen gas which occupied 2.24 L volume at STP. X is ______ × 10⁻¹ g.

Given below are two statements: Statement I : Gallium is used in the manufacturing of thermometers. Statement II : A thermometer containing gallium is useful for measuring the freezing point of brine solution (256 K). In the light of the above statements, choose the correct answer from the options given below :

Evaluate the following statements related to group 14 elements for their correctness. (A) Covalent radius decreases down the group from C to Pb in a regular manner. (B) Electronegativity decreases from C to Pb down the group gradually. (C) Maximum covalance of C is 4 whereas other elements can expand their covalance due to presence of d orbitals. (D) Heavier elements do not form $$p\pi - p\pi$$ bonds. (E) Carbon can exhibit negative oxidation states. Choose the correct answer from the options given below :

Identify correct statements : (A) Primary amines do not give diazonium salts when treated with $$NaNO_{2}$$ in acidic condition. (B) Aliphatic and aromatic primary amines on heating with $$CHCl_{3}$$and ethanolic KOH form carbylamines. (C) Secondary and tertiary amines also give carbylamine test. (D) Benzenesulfonyl chloride is known as Hinsberg's reagent. (E) Tertiary amines reacts with benzenesulfonyl chloride very easily. Choose the correct answer from the options given below :

In The following substitution reaction :

product 'P'formed is :

The products formed in the following reaction sequence are :

In the light of the above statements, choose the correct answer from the options given below

Consider the following sequence of reactions to produce major product (A)

Molar mass of product (A) is $$gmol^{-1}$$. (Given molar mass in $$gmol^{-1}$$ of C : 12, H : 1, O : 16, Br : 80, N : 14, P : 31)

A student has been given a compound "x" of molecular formula- $$C_{6}H_{7}N$$. 'x' is sparingly soluble in water. However, on addition of dilute mineral acid, 'x' becomes soluble in water. 'x' when treated with $$CHCl_{3}$$ and KOH(alc), 'Y' is produced. 'y' has a specific unpleasant smell. On treatment with benzenesulphonyl chloride, 'x' gives a compound 'z' which is soluble in alkali. The number of different "H" atoms present in 'z' is :-

Which of the following reaction/s will not give $$p$$-aminoazobenzene?

Identify the incorrect statements about group 15 elements : (A) Dinitrogen is a diatomic gas which acts like an inert gas at room temperature. (B) The common oxidation states of these elements are $$-3, +3$$ and $$+5$$. (C) Nitrogen has unique ability to form $$p\pi - p\pi$$ multiple bonds. (D) The stability of $$+5$$ oxidation states increases down the group. (E) Nitrogen shows a maximum covalency of 6. Choose the correct answer from the options given below :

The correct sequential order of the reagents for the given reaction is

Aryl fluoride may be prepared from arene diazonium chloride using :

The most appropriate reagent for conversion of $$\text{C}_2\text{H}_5\text{CN}$$ into $$\text{CH}_3\text{CH}_2\text{CH}_2\text{NH}_2$$ is:

Given below are two statements:
Statement I: Sulphanilic acid gives esterification test for carboxyl group.
Statement II: Sulphanilic acid gives red colour in Lassigne's test for extra element detection.
In the light of the above statements, choose the most appropriate answer from the options given below:

The order of basicity of amines in gaseous state is :