1.
The most suitable method of separation of a mixture of ortho and para-nitrophenols is
2.
Which of the statements is not true?
3.
The best method for the separation of naphthalene and benzoic acid from their mixture is
4.
In steam distillation of toluene, the pressure of toluene in vapour is
5.
Camphor is often used in molecular mass determination because
6.
Which of the following techniques is most suitable for purification of cyclohexanone from a mixture containing benzoic acid, isoamyl alcohol, cyclohexane and cyclohexanone?
7.
A is a lighter phenol and B is an aromatic carboxylic acid. Separation of a mixture of A and B can be carried out easily by using a solution of
8.
Prussian blue is formed when ?
9.
The Lassaigne’s extract is boiled with conc. HNO₃ while testing for halogens. By doing so it
10.
Lassaigne’s test for nitrogen detection fails in
11.
In sodium fusion test of organic compounds, nitrogen is converted into
12.
Lassaigne’s test is used to detect
13.
In Duma’s method for estimation of nitrogen, 0.25 g of an organic compound gave 40 mL of nitrogen collected at 300 K and 725 mm pressure. If aqueous tension at 300 K is 25 mm, the percentage of nitrogen in the compound is
14.
Kjeldahl’s method is used in the estimation of
15.
The most suitable method of separation of a mixture of ortho- and para-nitrophenols is
16.
The structure of isobutyl group in an organic compound is
17.
Which nomenclature is not according to the IUPAC system?
18.
The correct IUPAC name of the compound
19.
The state of hybridisation of C₂, C₃, C₅ and C₆ of the hydrocarbon:CH₃—CH=CH—CH₂—C≡CHis in the following sequence:
20.
The IUPAC name of the given compound is: (structure assumed based on answer as CH₃–CH(CH₃)–CH(CH₃)–CH₂–COCl)
21.
Name of the compound given below (branched 8-carbon chain with ethyl and methyl groups at positions 4 and 3 respectively)
22.
IUPAC name of: CH₂=CH–CH₂–CH₂–C≡CH
23.
The incorrect IUPAC name is:
24.
IUPAC name of the compound is:
25.
The IUPAC name of the given compound is:
26.
For the compound:CH₃–CH₂–CH(CH₂CH₃)–CH(CH₃)–CH₃,Which of the following IUPAC names is correct?
27.
The IUPAC name of the compound:CH₃–C(OH)=CH–CH(CH₃)–CHO
28.
2-methyl-2-butene will be represented as:
29.
Which of the following possesses an sp-carbon in its structure?
30.
Identify the compound that will react with Hinsberg’s reagent to give a solid which dissolves in alkali.
31.
With respect to the conformers of ethane, which of the following statements is true?
32.
The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha-carbon is:
33.
In which of the following molecules are all atoms coplanar?
34.
Which among the given molecules can exhibit tautomerism?
35.
Two possible stereostructures of CH₃–CHOH–COOH, which are optically active, are called:
36.
The enolic form of ethyl acetoacetate has:
37.
Which of the following compounds will undergo racemisation when hydrolyzed with aqueous KOH?
38.
The order of stability of the following tautomeric compounds is: I, II, III (structures given in image format)
39.
Which of the following acids does not exhibit optical isomerism?
40.
Which of the following compounds will exhibit cis-trans (geometrical) isomerism?
41.
How many stereoisomers does the following molecule have? CH₃–CH=CH–CHBr–CH₃
42.
For the compound:CH₃–CH₂–CH(CH₂CH₃)–CH(CH₃)–CH₃,Which of the following IUPAC names is correct?
43.
2-methyl-2-butene will be represented as:
44.
The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha-carbon is:
45.
In steam distillation of toluene, the pressure of toluene in vapour is
