Organic Chemistry – Some Basic Principles and Techniques

Topics in this chapter

• Organic Nomenclature and Isomerism
• Organic Stereochemistry
• Electronic Effects and Reactive Intermediates
• Covalent Bonding and Organic Structures
• Purification and Qualitative Analysis
• Quantitative Organic Analysis

Cheat sheet

Practice questions

1. Question 1Q-991B5D

   The IUPAC name of the compound CH3-CH(OH)-CH2-CH(CH3)-CHO is:

   1. A.4-hydroxy-2-methylpentanal
   2. B.2-methyl-4-hydroxypentanal
   3. C.4-hydroxy-1-methylpentanal
   4. D.2-methyl-4-oxopentan-2-ol
   See the answer and solution
2. Question 2Q-A5C059

   Which of the following carbocations is the most stable?

   1. A.(CH3)3C+
   2. B.(CH3)2CH+
   3. C.CH3CH2+
   4. D.CH3+
   See the answer and solution
3. Question 3Q-6E1853

   The correct order of stability of the following free radicals is: (I) (CH3)3C* (II) (CH3)2CH* (III) CH3CH2* (IV) CH3*

   1. A.I > II > III > IV
   2. B.IV > III > II > I
   3. C.II > I > III > IV
   4. D.I > III > II > IV
   See the answer and solution
4. Question 4Q-572016

   In Carius method of estimation of halogens, 0.25 g of an organic compound gave 0.188 g of AgBr. The percentage of bromine in the compound is: (Atomic mass of Ag = 108, Br = 80 g/mol)

   1. A.32.0%
   2. B.16.0%
   3. C.64.0%
   4. D.48.0%
   See the answer and solution
5. Question 5Q-10766C

   Which of the following species acts as an electrophile?

   1. A.NH3
   2. B.AlCl3
   3. C.C2H5OH
   4. D.H2O
   See the answer and solution