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AP Intermediate 2nd Year Amines and Biomolecules — practice questions — page 6

Explore 197 free Amines and Biomolecules questions in AP Intermediate 2nd Year Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Amines and Biomolecules questions and exercises with answers

Showing questions 151–180 of 197.

Replacing the diazo group by chlorine using a copper one salt is the:Read the answer and worked solution →Insulin and albumin are examples of which class of protein?Read the answer and worked solution →Oxidation of glucose with nitric acid gives:Read the answer and worked solution →Enzymes speed a reaction by lowering its:Read the answer and worked solution →In the DNA double helix adenine pairs with:Read the answer and worked solution →Which set of vitamins is fat soluble?Read the answer and worked solution →A chain of more than ten amino acids is called a:Read the answer and worked solution →Carbohydrates are also known by which other name?Read the answer and worked solution →Polysaccharides are also called non-sugars because they are not:Read the answer and worked solution →Match each name to the reaction it labelsRead the answer and worked solution →The carbon whose hydroxyl decides alpha or beta glucose is called:Read the answer and worked solution →Amino acids the body cannot make and must eat are called:Read the answer and worked solution →The dipolar ion form of an amino acid is called a:Read the answer and worked solution →Which amino acid is not optically active?Read the answer and worked solution →Most naturally occurring amino acids carry which configuration?Read the answer and worked solution →The bond joining two amino acids in a protein is a:Read the answer and worked solution →Keratin and myosin are examples of which class of protein?Read the answer and worked solution →On denaturation a protein loses which structures?Read the answer and worked solution →Almost all enzymes are which kind of protein?Read the answer and worked solution →The sugar found in a DNA molecule is:Read the answer and worked solution →Which base occurs in RNA but not in DNA?Read the answer and worked solution →A base attached to a sugar without phosphate is called a:Read the answer and worked solution →Oligosaccharides give on hydrolysis how many monosaccharide units?Read the answer and worked solution →Sugars that reduce Tollens' reagent are called:Read the answer and worked solution →Glucose is an aldohexose also known as:Read the answer and worked solution →Prolonged heating of glucose with hydrogen iodide gives:Read the answer and worked solution →Glucose pentaacetate shows that glucose carries how many hydroxyls?Read the answer and worked solution →The water soluble component of starch is:Read the answer and worked solution →All proteins are polymers of which kind of amino acid?Read the answer and worked solution →The five membered ring form of fructose is called the:Read the answer and worked solution →

Worked practice questions

Replacing the diazo group by chlorine using a copper one salt is the:

  1. Sandmeyer reaction
  2. Sandwich reaction
  3. Saponify reaction
  4. Substrate reaction
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Correct answer: A. Sandmeyer reaction

1. The diazonium salt is treated with a cuprous halide. 2. Nitrogen escapes and the halide takes its place. 3. This is the Sandmeyer reaction. _Source: syllabus Chemistry Part 2, Unit 9 'Amines'_

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Insulin and albumin are examples of which class of protein?

  1. Globular
  2. Granular
  3. Glandular
  4. Glacial
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Correct answer: A. Globular

1. Their chains coil round into a ball. 2. That shape dissolves readily in water. 3. These are the globular proteins. _Source: syllabus Chemistry Part 2, Unit 10 'Biomolecules'_

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Oxidation of glucose with nitric acid gives:

  1. Salicylic acid
  2. Succinic acid
  3. Sorbic acid
  4. Saccharic acid
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Correct answer: D. Saccharic acid

1. Nitric acid is the stronger oxidant here. 2. It oxidises the primary alcohol group as well. 3. The dicarboxylic product is saccharic acid. _Source: syllabus Chemistry Part 2, Unit 10 'Biomolecules'_

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