Amines

The product formed by the reaction of an aldehyde with a primary amine is:

The correct statement regarding the basicity of aryl amines is:

A given nitrogen-containing aromatic compound $A$ reacts with $\ce{Sn/HCl}$, followed by $\ce{HNO2}$, to give an unstable compound $B$. $B$, on treatment with phenol, forms a beautiful coloured compound $C$ with molecular formula $\ce{C12H10N2O}$. The structure of compound $A$ is

The correct increasing order of basic strength for the following compounds is (I) Aniline, \ce{C6H5NH2} (II) $p$-Nitroaniline, \ce{NH2-C6H4-NO2} (\ce{-NO2} at the para position) (III) $p$-Toluidine, \ce{NH2-C6H4-CH3} (\ce{-CH3} at the para position)

Which of the following reactions is appropriate for converting acetamide $\ce{(CH3CONH2)}$ to methanamine $\ce{(CH3NH2)}$?

Nitration of aniline in strong acidic medium also gives $m$-nitroaniline because

The correct order of the basic strength of methyl-substituted amines in aqueous solution is:

The amine that reacts with Hinsberg's reagent to give an alkali-insoluble product is:

Which of the following amines will give the carbylamine test?

Identify the compound that will react with Hinsberg's reagent to give a solid which dissolves in alkali.

Statement I: Primary aliphatic amines react with \ce{HNO2} to give unstable diazonium salts. Statement II: Primary aromatic amines react with \ce{HNO2} to form diazonium salts which are stable even above 300 K. Choose the most appropriate answer from the options given below:

Which of the following reactions will NOT give a primary amine as the product?

Identify the final product in the following reaction sequence: \ce{C6H5N2+Cl- ->[(i) Cu2Br2/HBr][(ii) Mg/dry\ ether][(iii) H2O] Product}

Choose the correct sequence of reagents in the conversion of 4-nitrotoluene to 2-bromotoluene.

Given below are two statements: Statement I: Aniline does not undergo Friedel-Crafts alkylation reaction. Statement II: Aniline cannot be prepared through Gabriel synthesis. In the light of the above statements, choose the correct answer from the options given below:

Identify the major product $C$ formed in the following reaction sequence: \ce{CH3CH2CH2I ->[NaCN] A ->[OH^-/NaOH][partial\ hydrolysis] B ->[Br2/NaOH] C}

The correct order of decreasing basic strength of the given amines is: (N-ethylethanamine $=$ \ce{(C2H5)2NH}; ethanamine $=$ \ce{C2H5NH2}; N-methylaniline $=$ \ce{C6H5NH(CH3)}; benzenamine/aniline $=$ \ce{C6H5NH2})

Predict the major product $P$ in the following sequence of reactions. The starting material is 1-methylcyclopent-1-ene: (i) \ce{HBr}, benzoyl peroxide; (ii) \ce{KCN}; (iii) \ce{Na(Hg)}/\ce{C2H5OH} $\rightarrow$ $P$ (major). The structures of the options (A)-(D) are shown in the image below:

Given below are two statements. Statement I: Benzenediazonium salt is prepared by the reaction of aniline with acid at 273-278 K. It decomposes easily in the dry state. Statement II: Insertion of iodine into the benzene ring is difficult, and hence iodobenzene is prepared through the reaction of the benzenediazonium salt with \ce{KI}. In the light of the above statements, choose the most appropriate answer.

Select the reagents that reduce nitriles to primary amines. A. (i) \ce{LiAlH4}; (ii) \ce{H2O} B. \ce{Sn + HCl} C. \ce{H2/Ni} D. \ce{Na(Hg)/C2H5OH} E. \ce{Br2/aq.\ NaOH} Choose the correct answer from the options given below.

The following two reactions give the same foul-smelling product Z. $\ce{C2H5Cl ->[X] Z}$ $\ce{C2H5CONH2 ->[Br2 + NaOH] C2H5NH2 ->[CHCl3 / ethanolic KOH][\Delta] Z}$ X and Z, respectively, are:

The major product $Z$ formed in the following sequence of reactions is: \ce{C2H6 ->[Cl2/UV] X ->[NH3] Y ->[(i) NaNO2/HCl][(ii) H2O] Z}

Identify the reactions which give aniline as the major product. (A) $\ce{C6H5CN ->[LiAlH4]}$; (B) $\ce{C6H5CONH2 ->[KOH, Br2]}$; (C) $\ce{C6H5NO2 ->[NaBH4]}$; (D) $\ce{C6H5NHCOCH3 ->[HCl, H2O, \Delta]}$. Choose the correct answer: