Amines and Nitrogen Compounds

Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R

Assertion A : Aniline on nitration yields ortho, meta & para nitro derivatives of aniline.

Reason R : Nitrating mixture is a strong acidic mixture.

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

Which among the following is the strongest Bronsted base ?

Ethyl chloride is treated with AgCN in $\mathrm{C_2H_5OH-H_2O}$ to give 'A' (Major Product), and with NaCN in $\mathrm{C_2H_5OH-H_2O}$ to give 'B' (Major Product), as shown.

Considering the above reactions, the compound 'A' and compound 'B' respectively are :

4-Hydroxybenzaldehyde is treated with Br$_2$ to give A; A with NH$_2$OH gives B; B is heated with P$_2$O$_5$ to give C.

Consider the above reaction sequence, the Product 'C' is :

'A' ($\mathrm{C_8H_6Cl_2O}$) reacts with NH$_3$ to give $\mathrm{C_8H_8ClNO}$, which with Br$_2$/NaOH gives 4-chloro-3-methylaniline (shown).

Consider the above reaction, the compound 'A' is :

Benzenediazonium chloride reacts with 'A' in NaOH to give an orange-red dye (Product), as shown.

Which among the following represent reagent 'A' ?

The Hinsberg reagent is

Which one of the following compounds can be prepared in good yield by Hoffmann bromamide degradation reaction?

Benzenediazonium chloride + X gives benzenediazonium tetrafluoroborate, which with Y (Cu, Δ) gives nitrobenzene (Major Product).

Consider the given chemical reaction, identify X and Y

The reaction sequence(s) that would lead to o-xylene as the major product is(are)

Correct option(s) for the following sequence of reactions is(are)

The value of $\mathbf x$ is ____.

The value of $\mathbf y$ is ____.

In the following reaction the reason why meta-nitro product also formed is :

Aniline with conc. HNO$_3$ / conc. H$_2$SO$_4$ at 288 K gives p-nitroaniline [A] 51%, m-nitroaniline [B] 47% and o-nitroaniline [C] 2%.

'A' and 'B' in the following reactions are :

Aniline is treated with NaNO$_2$/HCl and then KCN to give (A); (A) with SnCl$_2$/HCl/H$_3$O$^+$ gives (B).

Consider the following four compounds I, II, III, and IV.

Choose the correct statement(s).

Consider the reaction sequence from P to Q shown below. The overall yield of the major product Q from P is 75%. What is the amount in grams of Q obtained from 9.3 mL of P? (Use density of P = 1.00 g mL⁻¹; Molar mass of C = 12.0, H = 1.0, O = 16.0 and N = 14.0 g mol⁻¹)

Schemes 1 and 2 describe the conversion of P to Q and R to S, respectively. Scheme 3 describes the synthesis of T from Q and S. The total number of Br atoms in a molecule of T is ______

The compound S is

Aniline reacts with mixed acid (conc. $\mathrm{HNO_3}$ and conc. $\mathrm{H_2SO_4}$) at 288 K to give P (51 %), Q (47%) and R (2%). The major product(s) of the following reaction sequence is (are)

R → [1) Ac$_2$O, pyridine; 2) Br$_2$, CH$_3$CO$_2$H; 3) H$_3$O$^+$; 4) NaNO$_2$, HCl/273-278 K; 5) EtOH, Δ] → S → [1) Sn/HCl; 2) Br$_2$/H$_2$O (excess); 3) NaNO$_2$, HCl/273-278 K; 4) H$_3$PO$_2$] → major product(s)