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IIT JEE Fundamental Concepts Of Organic Chemistry

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1 An electrophile is a/an
✅ Correct Answer: 2
2 Geometrical isomerism exist due to the presence of
✅ Correct Answer: 2
3 In the case of o-chlorophenol there exist
✅ Correct Answer: 1
4 In isopentane the number of secondary carbon atom is12
✅ Correct Answer: 1
5 Carbocation (or carbonium ion) is
✅ Correct Answer: 2
6 Carbonium ions contain only??.electrons around the carbon core.2659
✅ Correct Answer: 2
7 Carboxylic acids are isomeric withacid anhydrides
✅ Correct Answer: 2
8 .Two or more compounds having the same number and kind of atoms and same molecular weight are called
✅ Correct Answer: 3
9 .The process of separating a racemic mixture into optical isomers is known as
✅ Correct Answer: 3
10 Sulphur trioxide isa base
✅ Correct Answer: 4
11 .In neopentane the number of primary carbon atoms are
✅ Correct Answer: 1
12 Which of the following type of isomerism is found in the members of the same homologous series?Metamerism
✅ Correct Answer: 3
13 Hetrolytic fission results in the formation of
✅ Correct Answer: 3
14 .In acetylene C-C-H bond angle is
✅ Correct Answer: 2
15 The forces between the molecules of a non-polar compounds arehybrid forces
✅ Correct Answer: 1
16 Carbanions are isoelectronic with
✅ Correct Answer: 3
17 Diethyl amine and methylk propylamines are
✅ Correct Answer: 1
18 Diethyl amine and methylk propylamines areANSWER : : metamers
✅ Correct Answer: 1
19 .The number of possible metamers of pentonone are513
✅ Correct Answer: 3
20 The tetrahedral nature of the carbon was given by
✅ Correct Answer: 3
21 .The tetrahedral nature of the carbon was given by
✅ Correct Answer: 2
22 Decomposition of a compound by the action of heat is known as
✅ Correct Answer: 4
23 The most volatile amongst the following is
✅ Correct Answer: 3
24 .Different arrangement of atoms that can be converted into one another by rotation about single bonds are calledconformation
✅ Correct Answer: 2
25 A nucleophile is a
✅ Correct Answer: 1
26 Chain isomers differ w.r.t.
✅ Correct Answer: 4
27 Alcohols are isomeric with
✅ Correct Answer: 2
28 .The total no. of possible isomers of ethane are
✅ Correct Answer: 4
29 Which of the following carbonium ions is the most stable?
✅ Correct Answer: 1
30 .Liquids whose molecules are held together by hydrogen bonds are called
✅ Correct Answer: 1
31 In substitution reactions of tertiary halide the ionisation of halogen atom as negative ion is facilitated by
✅ Correct Answer: 2
32 Which of the following represents the iso-butyl radical ?
✅ Correct Answer: 4
33 Which of the following has zero dipole moment ?
✅ Correct Answer: 3
34 Which of the following alkanes has neither secondary nor tertiary hydrogens?neo-Pentane.
✅ Correct Answer: 4
35 .The no. of possible isomers of 1 2 dichloroethane are
✅ Correct Answer: 1
36 he IUPAC name of isoprene is
✅ Correct Answer: 2
37 .Which of the following compounds is chiral?
✅ Correct Answer: 3
38 The IUPAC name of crotyl chloride is
✅ Correct Answer: 2
39 The secondary suffix in the IUPAC names of ketones is----
✅ Correct Answer: 2
40 Which of the following is optically active?
✅ Correct Answer: 2
41 IUPAC name of propargyl alcohol is
✅ Correct Answer: 1
42 The number of pi bonds in isoprene is2310.
✅ Correct Answer: 1
43 Molecules that are not superimposable on their mirror images aresymmetric
✅ Correct Answer: 4
44 In 19. In iso-octane (2 2 4-trimethylpentane) the number of tertiary hydrogen atoms is
✅ Correct Answer: 1
45 Paraffins is the common name used for
✅ Correct Answer: 1
46 .In iso-octane (2 2-4-trimethylpentane) the number of primary hydrogen atoms is
✅ Correct Answer: 2
47 .Which of the following molecules does not contains any secondary hydrogen atom?
✅ Correct Answer: 2
48 Diastereomers are a pair
✅ Correct Answer: 2
49 .Which of the following have zero dipole moment?
✅ Correct Answer: 2
50 All the members of a homologous series have same
✅ Correct Answer: 3
51 The IUPAC name of allylene is
✅ Correct Answer: 2
52 Which of the following is the functional isomer of methyl acetate?
✅ Correct Answer: 2
53 Which of the following compounds contains maximum number of tertiary hydrogen atoms?
✅ Correct Answer: 3
54 The IUPAC name of crotyl chloride is
✅ Correct Answer: 4
55 .What is not truen about homologous series ?
✅ Correct Answer: 4
56 What is not true about homologous series?Adjacent members differ in molecular mass by 14.
✅ Correct Answer: 2
57 .Optical activity in a compound can be detected by means of
✅ Correct Answer: 4
58 .Which of the following compounds has least dipole moment?
✅ Correct Answer: 3
59 .An example of cinjugated diene is1 4-Pentadiene
✅ Correct Answer: 4
60 Number of sec-H atoms in iso-butane is
✅ Correct Answer: 4
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