A reaction that can convert acetamide to methanamine is:
1. Carbylamine reaction
2. Hoffmann bromamide reaction
3. Stephens reaction
4. Gabriels phthalimide synthesis
A given nitrogen-containing aromatic compound a reacts with Sn/HCl, followed by HNO2 to give an unsatable compound B.B, on treament with phenol, forms a beautiful coloured compound C with the molecular formula C12H10N2O. The structure of compound A is
The following reaction,
is known by the name:
1. Friedel-Crafts reaction
2. Perkins reaction
3. Acetylation reaction
4. Schotten-Baumann reaction
Which of the following will be most stable diazonium salt ?
1.
2.
3.
4.
In a reaction of aniline a coloured product C was obtained.
The structure of C would be
(a)
(b)
(c)
(d)
Which one of the following is an amine hormone ?
(1) Thyroxine
(2) Oxypurin
(3) Insulin
(4) Progesterone
Choose the appropriate sequence to maximize the yield of 3-chloro-aniline from benzene.
1. Chlorination, nitration, reduction
2. Nitration, chlorination, reduction
3. Nitration, reduction, chlorination
4. Nitration, reduction, acylation, chlorination, hydrolysis
An organic compound X (mol. formula C6H5O2N) has 6 carbon atoms in a ring system, three double bonds and also a nitro group as substituent X is:
1. Homocyclic but not aromatic
2. Aromatic but not homocyclic
3. Homocyclic and aromatic
4. Heterocyclic
Potassium thiocyanate solution reacts with ferric chloride to give:
(1) pink colour
(2) deep blue colour
(3) green colour
(4) blood-red colour
The presence of radical in solution can be detected by:
1. Fehling’s solution
2. Benedict’s solution
3. Schiff's reagent
4. Nessler’s reagent