TMA2 CHM303 ORGANIC CHEMISTRY III QUESTION AND ANSWER

TMA 2 CHM303 ORGANIC CHEMISTRY III

  1. Functional groups like nitro and ethers also makes methylene group?
  2. Synthetic
  3. Functional
  4. Attracting
  5. Reactive

The answer is D. Reactive

  1. Dicarboxylic acid shown position
  2. Isomerism
  3. Decomposition
  4. Oxidation
  5. Diffusion

The answer is A. Isomerism

  1. Colour reaction for protein serve as test in proteins and they are all except____?
  2. Ninhydrin test
  3. Molish test
  4. Biuret test
  5. Oxidation test

The answer is D. Oxidation test

  1. One of this is not a physical property of thioiphene?
  2. Soluble in organic solvent
  3. Insoluble in water
  4. Soluble in water
  5. Colourless liquid

The answer is C. Soluble in water

  1. Which of the following is non-reactive towards electrophiles?
  2. Benzene
  3. e thiopene
  4. Furan
  5. Pyrrole

The answer is A. Benzene

  1. Chemical reaction of dicarboxylic acid are mainly governing by_____?
  2. Succinic acid
  3. Reactivity of carboxylic group
  4. Two carboxyl group
  5. None of the above

The answer is B. Reactivity of carboxylic group

  1. ____ are the most important chemical substance that are essential for growth and importance of life
  2. Phosphoric acid
  3. Protein
  4. Amino acid
  5. Chloric acid

The answer is B. Protein

  1. The coiling or folding of long peptide chain give rise to a _____
  2. Two dimensional structure
  3. Reactive structure
  4. Inactive structure
  5. Three dimensional structure

The answer is D. Three dimensional structure

  1. Thiophene when treated with isalin and concentrated tetraoxosulphate (vi) acid provides a ______
  2. A red colour
  3. Blue colour
  4. Yellow colour
  5. Pink colour

The answer is B. Blue colour

  1. All amino acids obtained by acid or enzymatic hydrolysis are _____?
  2. Optically reactive
  3. Optically active
  4. Optically inactive
  5. Optically attractive

The answer is B. Optically active

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