Organic Chemistry – Some Basic Principles and Techniques · Question 20

From the following, the least stable structure is :

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

Match the LIST-I with LIST-II Choose the correct answer from the options given below:

1. A-IV, B-II, C-III, D-I
2. A-II, B-III, C-I, D-IV
3. A-III, B-IV, C-I, D-II
4. A-III, B-IV, C-II, D-I

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