This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Amino Acids, DNA and RNA”. 1. In double helix of DNA, the two DNA strands show which type of characteristics? a) coiled around a common axis b) coiled around each other c) coiled differently d) coiled over protein sheath 2. A nucleotide … Read more
This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Step Reaction Polymerisation”. 1. Which of the following is true about Step-growth polymerisation? a) radical, coordination, anionic, or cationic polymerization, depending on the type of initiation b) polymerization that is catalysed by transition metal salts and complexes c) monomers react by eliminating … Read more
This set of Organic Chemistry Problems focuses on “Coordination Polymerisation”. 1. Which of the following is true about coordination polymerisation? a) radical, coordination, anionic, or cationic polymerization, depending on the type of initiation b) polymerization that is catalysed by transition metal salts and complexes c) monomers react by eliminating small molecules like H2O, NH3, CH2O … Read more
This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Copolymerisation”. 1. Which of the following is true about copolymerisation? a) radical, coordination, anionic, or cationic polymerization, depending on the type of initiation b) addition of monomer to a metal complex, propagation is by successive insertion of monomer at the metal, and … Read more
This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Free Radical Vinyl Polymerisation”. 1. Which of the following is an initiator molecule in the free radical polymerisation? a) Benzoyl peroxide b) Sulphuric acid c) Potassium permanganate d) Chromium oxide 2. Why is vinyl polymerization also known as addition polymerization? a) monomers … Read more
This set of Organic Chemistry Questions and Answers for Entrance exams focuses on “Macromolecules – 2”. 1. What happens when a macromolecule undergoes hydrolysis reaction? a) protein coils into its secondary structure b) the bond between two subunits of a macromolecule is broken c) a bond is formed between two subunits of a macromolecule d) … Read more
This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Macromolecules – 1”. 1. Macromolecule described as large molecules built up from small repeating units called as which of the following? a) Biopolymer b) Dimers c) Monomers d) Metamers 2. Carbohydrates are polyhydroxy compounds of _______________ a) Glucose b) Oligosaccharides c) Aldehyde … Read more
This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Reduction of Pyridine”. 1. What will be the product if reaction with hydrogen gas in the presence of Raney nickel takes place? a) Pyrimidine b) Piperdine c) Pyrylium salt d) Pentazine 2. What is name of the reaction when piperdine is converted … Read more
This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Nucleophilic Substitution in Pyridine”. 1. At which position of pyridine nucleophilic substitution reaction is most preferred? a) First and third b) Second c) Third d) Second and Forth 2. Pyridine undergoes nucleophilic substitution with NaNH2 at 100℃ to give which of the … Read more
This set of Organic Chemistry Assessment Questions and Answers focuses on “Electrophilic Substitution in Pyridine”. 1. Electrophilic substitution reaction of pyridine is most effective in which of the conditions? a) In slightly acidic conditions b) In slightly basic conditions c) In neutral medium d) In vigorous conditions 2. Which of the following electrophilic substitution reaction … Read more
