The A and B in the above reactions are -
1. | Alcohol, Diazonium salt | 2. | Aldehyde, Diazonium salt |
3. | Diazonium salt, Alcohol | 4. | Diazonium salt, Aldehyde |
X, and Y in the following sequence are :
1. | X = Br2 / CS2 , and Y = | ![]() |
2. | X = Br2 / H2O and Y = | ![]() |
3. | X = Br2 / CS2 , and Y = | ![]() |
4. | X = Br2 / H2O and Y = | ![]() |
Benzamide A Benzene B
A and B in the above reaction sequence are -
1. Chlorobenzene and aniline
2. Aniline and toluene
3. p-Methylaniline and chlorobenzene
4. None of the above
The molecular formulae of A and B in the following are:
\(CH_3CH_2Br\xrightarrow{KCN}CH_3CH_2CN\xrightarrow{LiAlH_4}\\ A\xrightarrow {HNO_2,~0 \ ^{o}C}B\)
1. \(\mathrm{{CH}_{3} {CH}_{2} {CH}_{2} {NH}_{2}}, ~\text{and} ~\mathrm{{CH}_{3} {CH}_{2} {CH}_{3}}\)
2. \(\mathrm{{CH}_{3} {CH}_{2} {CH}_{2} {NH}_{2}},~\text{and} ~\mathrm{{CH}_{3} {CH}_{2} {CH}_{2} {OH}}\)
3. \(\mathrm{{CH}_{3} {CH}_{2} {CH}={NH}}, ~\text{and} ~\mathrm{{CH}_{3} {CH}_{2} {CH}_{2} {OH}}\)
4. \(\mathrm{{CH}_{3} {CH}_{2} {CH}={NH}}, ~\text{and} ~\mathrm{{CH}_{3} {CH}_{2} {CH}_{3}}\)
A and B in the above reaction sequence are -
The correct statements among the following is :
1. | Coupling reaction is an example of an electrophilic substitution reaction. |
2. | Azo dye contains -N=N- linkage. |
3. | p-Aminoazobenzene is obtained when diazonium salt reacts with an aniline. |
4. | All of the above |