Welcome to your nitrogens compounds
1.
Nitrobenzene can be prepared from benzene by using a mixture of conc. HNO3 and conc. H2SO4. In the nitrating mixture, nitric acid acts as a:
2.
Among the following, the most basic compound is:
3.
If two compounds have the same empirical formula but different molecular formula, they must have:
4.
The compound that is most reactive towards electrophilic nitration is:
5.
The melting point is highest for:
6.
Carbylamine test is performed in alcoholic KOH by heating a mixture of:
7.
Acetamide is treated separately with the following reagents. Which one gives methylamine?
8.
In the reaction: Nitrobenzene →(Sn/HCl)→ X, X is:
9.
Which reacts with NaNO2 + HCl at 273–278 K to give alcohol?
11.
When acetamide is treated with NaOBr, the product formed is:
12.
Which compound cannot be identified by carbylamine test?
13.
The compound which on reaction with aqueous nitrous acid at low temperature produces an oily nitrosoamine is:
14.
Which is formed when (CH3)4NOH is heated?
15.
Which of the following is most basic in nature?
16.
Nitrobenzene gives azoxybenzene and hydrazobenzene when reduced:
17.
An organic compound A (C2H5N) on reduction gave B. B on treatment with nitrous acid gave ethyl alcohol. On warming with chloroform and alcoholic KOH it formed offensive compound C. The compound C is:
18.
Aniline reacts with which of the following to form a Schiff’s base?
19.
Among the following compounds, C2H5NH2, NH3, CH3NH2, C6H5NH2 and C2H5NHCH3, the least basic compound is:
20.
Which of the following gives primary amine on reduction?
21.
Reaction of aniline with benzaldehyde is a:
22.
The indicator obtained by coupling the diazonium salt of sulphuric acid with N,N-dimethylaniline is:
23.
Treatment of ammonia with excess ethyl iodide will yield:
24.
Aniline on nitration gives:
25.
The reagent that reacts with nitromethane to form methylhydroxylamine is:
26.
Which amine will NOT give carbylamine reaction?
28.
Which reagent converts benzenediazonium chloride into benzene?
29.
Which of the following reactions gives amide?
30.
Which reacts with benzenesulphonyl chloride to form a compound soluble in KOH?
31.
Aniline on reaction with acetyl chloride gives:
32.
On heating benzylamine with ethanolic KOH, the product obtained is:
33.
Towards electrophilic substitution, the most reactive will be:
34.
Nitrobenzene gives N-phenylhydroxylamine by:
35.
Among the following, the weakest base is:
36.
Which compound on treatment with NaNO2/HCl and then coupled with phenol produces p-hydroxyazobenzene?
37.
Among the following, the dissociation constant is highest for:
38.
When a mixture of secondary amines is heated with diethyl oxalate, it forms:
39.
Which of the following is formed when ethyl carbonate reacts with ammonia?
40.
Among the following which one does NOT act as an intermediate in Hofmann rearrangement?
41.
Pyridine is less basic than triethylamine because:
42.
KCN reacts readily to form a cyanide with:
43.
When acetamide is treated with Br2 and caustic soda, then we get:
44.
Which of the following behaves both as a nucleophile and as an electrophile?
45.
Which of the following compounds cannot be identified by carbylamine test?
