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

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 31–60 of 197.

Aromatic amines are weaker bases than ammonia because the aryl group is:Read the answer and worked solution →Aniline is a resonance hybrid of how many structures?Read the answer and worked solution →Which reaction is used as a test for primary amines?Read the answer and worked solution →Hinsberg's reagent used to tell amines apart is:Read the answer and worked solution →Aniline with bromine water at room temperature gives:Read the answer and worked solution →The activating power of the amino group is curbed by:Read the answer and worked solution →Aniline heated with sulphuric acid finally yields:Read the answer and worked solution →Aniline fails to undergo the Friedel-Crafts reaction because it:Read the answer and worked solution →Benzenediazonium chloride is made from aniline and nitrous acid at:Read the answer and worked solution →Replacing the diazo group by chlorine using a copper one salt is the:Read the answer and worked solution →Introducing halogen using copper powder and a halogen acid is the:Read the answer and worked solution →Iodobenzene is obtained by treating the diazonium salt with:Read the answer and worked solution →Coupling of benzenediazonium chloride with phenol gives:Read the answer and worked solution →Match each name to the reaction it labelsRead the answer and worked solution →Order the steps to a coloured azo dyeRead the answer and worked solution →True or false about aminesRead the answer and worked solution →Sort each route by the amine it givesRead the answer and worked solution →Fill the gaps on amine chemistryRead the answer and worked solution →Spot the one that does not fitRead the answer and worked solution →Does it react with a primary amine only?Read the answer and worked solution →Pick the right answer, quicklyRead the answer and worked solution →Carbohydrates are defined as optically active polyhydroxy:Read the answer and worked solution →Carbohydrates are also known by which other name?Read the answer and worked solution →A carbohydrate that cannot be hydrolysed further is a:Read the answer and worked solution →Oligosaccharides give on hydrolysis how many monosaccharide units?Read the answer and worked solution →Polysaccharides are also called non-sugars because they are not:Read the answer and worked solution →Sugars that reduce Tollens' reagent are called:Read the answer and worked solution →A monosaccharide holding an aldehyde group is called an: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 →

Worked practice questions

Aromatic amines are weaker bases than ammonia because the aryl group is:

  1. Electron releasing
  2. Electron neutralising
  3. Electron generating
  4. Electron withdrawing
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Correct answer: D. Electron withdrawing

1. The lone pair goes into conjugation with the ring. 2. It is then less available to take a proton. 3. The aryl group pulls electron density away. _Source: syllabus Chemistry Part 2, Unit 9 'Amines'_

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Aniline is a resonance hybrid of how many structures?

  1. Five
  2. Nine
  3. Four
  4. Seven
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Correct answer: A. Five

1. The lone pair can be pushed into the ring. 2. That yields several charge separated forms. 3. Aniline is a hybrid of five structures in all. _Source: syllabus Chemistry Part 2, Unit 9 'Amines'_

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Which reaction is used as a test for primary amines?

  1. Chlorination
  2. Carbylamine
  3. Cannizzaro
  4. Clemmensen
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Correct answer: B. Carbylamine

1. The amine is heated with chloroform and ethanolic potash. 2. A foul smelling isocyanide is formed. 3. Only primary amines give this carbylamine reaction. _Source: syllabus Chemistry Part 2, Unit 9 'Amines'_

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