Organic Chemistry – Some Basic Principles and Techniques

The major product of which of the following reaction is not obtained by rearrangement reaction ?

1. [figure]
2. [figure]
3. [figure]
4. [figure]

The total number of aromatic compounds/species from the following is [figure]

1. 6
2. 4
3. 3
4. 5

Shown below is the structure of methyl acetate with three different α, β and γ carbon - oxygen bonds. [figure] The correct order of bond lengths of these bonds is :

1. α > β > γ
2. α < β < γ
3. α = β = γ
4. α < β = γ

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below :

1. Both Statement I and Statement II are correct
2. Both Statement I and Statement II are incorrect
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct

IUPAC name of the some alkenes are given below. Find out the correct stability order. Choose the correct answer from the options given below :

1. C > A > B > D
2. C > A > D > B
3. B > D > A > C
4. A > B > C > D

Identify the correct IUPAC name of hydrocarbon (x) containing three primary carbon atoms and with molar mass 72 g mol-1.

1. 1, 1 - Dimethylcyclopropane
2. 2, 2 - Dimethylpropane
3. 2 - Methylbutane
4. n-pentane

Increasing order of electron withdrawing power of following functional groups is : a. -CN b. -COOH c. -NO2 d. -I

1. c < b < d < a
2. c < a < b < d
3. d < b < a < c
4. a < b < c < d

Consider the following molecules/species : [figure] The correct order of carbon-oxygen double bond length is :

1. x > y > z
2. y > z > x
3. z > x > y
4. x > z > y

The descending order of acidity among the following compounds is : [figure] Choose the correct answer from the options given below :

1. B > D > E > A > C
2. D > B > E > A > C
3. C > A > B > D > E
4. D > E > B > A > C

The strongest conjugate acid will result from:

1. [figure]
2. [figure]
3. [figure]
4. [figure]

In IUPAC nomenclature, the correct order of decreasing priority of functional group is :

1. -CONH2, >C=O, -CHO, -NH2, -C C-
2. -CONH2, -COOCH3, -CHO, -NH2, -OH
3. -CONH2, -CHO, >C=O, -NH2, -C C-
4. -CONH2, -CHO, -CN, -NH2, -C C-

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below :

1. Both Statement I and Statement II are true
2. Both Statement I and Statement II are false
3. Statement I is true but Statement II is false
4. Statement I is false but Statement II is true

CORRECT order of stability for the following is CH2=CH-, CH3-CH2-, CH C-

1. CH C- > CH3-CH2- > CH2=CH-
2. CH2=CH- > CH C- > CH3-CH2-
3. CH C- > CH2=CH- > CH3-CH2-
4. CH3-CH2- > CH2=CH- > CH C-

The cyclic cations having the same number of hyperconjugation are : Choose the correct answer from the options given below :

1. B and C Only
2. A and B Only
3. A and C Only
4. A, C and D Only

Arrange the following alkenes in decreasing order of stability. [figure] Choose the correct answer from the options given below:

1. III > I > II > IV
2. III > II > I > IV
3. I > III > II > IV
4. I > III > IV > II

Arrange the following carbanions in the decreasing order of stability. I. p-Br-C6H4- CH2 II. C6H5- CH2 III. p-CH3O-C6H4- CH2 IV. p-CHO-C6H4- CH2 V. p-CH3-C6H4- CH2 Choose the correct answer from the options given below :

1. I > II > IV > V > III
2. IV > II > I > III > V
3. I > IV > II > V > III
4. IV > I > II > V > III

Find out the statements which are not true. Choose the correct answer from the options given below :

1. A, D & E only
2. A, C & D only
3. B & D only
4. B, D & E only

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below

1. Statement I is false but Statement II is true
2. Statement I is true but Statement II is false
3. Both Statement I and Statement II are true
4. Both Statement I and Statement II are false

The IUPAC name of the following compound is : [figure]

1. 2-bromo-5-methylhexylpropanoate
2. n-propyl-1-bromo-4-methylhexanoate
3. n-propyl-2-bromo-5-methylheptanoate
4. 2-bromo-5-methylpropanoate

From the following, the least stable structure is :

1. [figure]
2. [figure]
3. [figure]
4. [figure]

What is the correct IUPAC name of the compound? [figure]

1. 1-Ethylcyclopent-2-en-3-ol
2. 4-Ethylcyclopent-2-en-1-ol
3. 1-Ethyl-3-hydroxycyclopent-2-ene
4. 4-Ethyl-1-hydroxycyclopent-2-ene

Which of the following is the correct IUPAC name of given organic compound (X)? [figure]

1. 4-Bromo-3-methylbut-2-ene
2. 1-Bromo-2-methylbut-2-ene
3. 3-Bromo-3-methylprop-2-ene
4. 2-Bromo-2-methylbut-2-ene

Given below are two statements. In the light of the above statements, choose the correct answer from the options given below:

1. Both Statement I and Statement II are true
2. Statement I is true but Statement II is false
3. Statement I is false but Statement II is true
4. Both Statement I and Statement II are false

The IUPAC name of the following compound is: HC C-CH2- OH |CH-CH2-CH=CH2

1. 4-Hydroxyhept-6-en-1-yne
2. Hept-1-en-6-yn-4-ol
3. Hept-6-en-1-yn-4-ol
4. 4-Hydroxyhept-1-en-6-yne

In which pairs, the first ion is more stable than the second?

1. (A) & (B) only
2. (B) & (D) only
3. (A) & (C) only
4. (B) & (C) only

The correct order of basicity for the following molecules is : [figure]

1. R > P > Q
2. P > Q > R
3. R > Q > P
4. Q > P > R

The least acidic compound, among the following is: [figure]

1. B
2. D
3. A
4. C

What is the correct IUPAC name of [figure] ?

1. 3-Bromo-2-hydroxy-5-nitrobenzoic acid
2. 2-Hydroxy-3-bromo-5-nitrobenzoic acid
3. 3-Bromo-4-hydroxy-1-nitrobenzoic acid
4. 5-Nitro-3-bromo-2-hydroxybenzoic acid

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below

1. Statement I is false but Statement II is true
2. Statement I is true but Statement II is false
3. Both Statement I and Statement II are false
4. Both Statement I and Statement II are true

Consider the following compound (X) [figure] The most stable and least stable carbon radicals, respectively, produced by homolytic cleavage of corresponding C-H bond are :

1. III, II
2. II, IV
3. I, IV
4. II, I