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NEET UG Amines and Biomolecules — practice questions — page 7

Explore 207 free Amines and Biomolecules questions in NEET UG 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 181–207 of 207.

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 →Glucose oxidised by bromine water yields:Read the answer and worked solution →NEET · Chemistry · Physisorption or ChemisorptionRead the answer and worked solution →NEET · Chemistry · Addition or Condensation PolymerRead the answer and worked solution →Polythene is best classified as an:Read the answer and worked solution →Nucleotides in a chain are joined by which linkage?Read the answer and worked solution →Hoffmann bromamide degradation treats an amide with bromine and:Read the answer and worked solution →Gabriel phthalimide synthesis is used to prepare only:Read the answer and worked solution →Aniline fails to undergo the Friedel-Crafts reaction because it:Read the answer and worked solution →Aromatic primary amines cannot be made by Gabriel synthesis because:Read the answer and worked solution →Introducing halogen using copper powder and a halogen acid is the:Read the answer and worked solution →The disease scurvy results from deficiency of:Read the answer and worked solution →A carbohydrate that cannot be hydrolysed further is a:Read the answer and worked solution →A monosaccharide holding an aldehyde group is called an:Read the answer and worked solution →In DNA, the complementary base pair to adenine (A) is:Read the answer and worked solution →The six membered ring form of glucose is called the:Read the answer and worked solution →Fructose is best described as a:Read the answer and worked solution →Commercial glucose is obtained by hydrolysing starch at:Read the answer and worked solution →Amylopectin makes up roughly what share of starch?Read the answer and worked solution →Order the steps to a coloured azo dyeRead the answer and worked solution →Carbohydrates are defined as optically active polyhydroxy:Read the answer and worked solution →Which combination correctly matches the two processes described in the notes for a galvanic cell?Read the answer and worked solution →The potential developed between the zinc rod and the solution due to its tendency to undergo oxidation is calledRead the answer and worked solution →

Worked practice questions

Prolonged heating of glucose with hydrogen iodide gives:

  1. Normal butane
  2. Normal hexane
  3. Normal heptane
  4. Normal pentane
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Correct answer: B. Normal hexane

1. The reduction strips every oxygen from the molecule. 2. What is left shows how the carbons are joined. 3. Normal hexane proves a straight six carbon chain. _Source: syllabus Chemistry Part 2, Unit 10 'Biomolecules'_

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Glucose pentaacetate shows that glucose carries how many hydroxyls?

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

1. Acetic anhydride acetylates every free hydroxyl. 2. The product carries five acetyl groups. 3. So glucose has five hydroxyl groups. _Source: syllabus Chemistry Part 2, Unit 10 'Biomolecules'_

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The water soluble component of starch is:

  1. Amylase
  2. Amylene
  3. Amyloid
  4. Amylose
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Correct answer: D. Amylose

1. Starch has two components in it. 2. One is a long unbranched chain, about a fifth of the whole. 3. That soluble part is amylose. _Source: syllabus Chemistry Part 2, Unit 10 'Biomolecules'_

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More Chemistry topics

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