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ISC Class 12 Amines and Biomolecules — practice questions

Explore 108 free Amines and Biomolecules questions in ISC Class 12 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 1–30 of 108.

True or False: Organic Basics (ISC 12)Read the answer and worked solution →Complete the definition of an amino acidRead the answer and worked solution →True or false: amino acidsRead the answer and worked solution →Reading the definitionsRead the answer and worked solution →Which part of the amino acid?Read the answer and worked solution →Assertion and reasonRead the answer and worked solution →Flip and pair: term with meaningRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Aniline heated with sulphuric acid finally yields:Read the answer and worked solution →The chief drawback of ammonolysis is that it yields a:Read the answer and worked solution →In ammonolysis the order of reactivity of alkyl halides is:Read the answer and worked solution →NEET · Chemistry · Carbohydrate FamilyRead the answer and worked solution →The alpha helix and the beta pleated sheet belong to which level?Read the answer and worked solution →The arrangement of sub-units in a protein is its:Read the answer and worked solution →The name of an enzyme almost always ends in:Read the answer and worked solution →Water soluble vitamins must be eaten regularly because they are:Read the answer and worked solution →The coagulation of egg white on boiling is an example of:Read the answer and worked solution →The sequence of amino acids in a chain is its:Read the answer and worked solution →Two monosaccharides joined through an oxygen atom share a:Read the answer and worked solution →Sucrose is a non reducing sugar because both its:Read the answer and worked solution →The laevorotatory mixture left after hydrolysing sucrose is called:Read the answer and worked solution →Maltose on hydrolysis gives two units of:Read the answer and worked solution →Cellulose is a straight chain polymer built only from:Read the answer and worked solution →Carbohydrate is stored in the animal body as:Read the answer and worked solution →Lactose, the sugar of milk, is built from glucose and:Read the answer and worked solution →The word protein comes from a Greek word meaning:Read the answer and worked solution →The amine from Hoffmann degradation has how many carbons?Read the answer and worked solution →Spot the one that does not fitRead the answer and worked solution →Sort each route by the amine it givesRead the answer and worked solution →True or false about aminesRead the answer and worked solution →

Worked practice questions

True or False: Organic Basics (ISC 12)

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Questions
  1. Statement is true
    Yes
    Statement
    Alkanes contain only single carbon-carbon bonds.
  2. Statement is true
    Yes
    Statement
    The functional group of alcohols is -OH.
  3. Statement is true
    Yes
    Statement
    Benzene has the formula C6H6.
  4. Statement is true
    No
    Statement
    Alkenes are saturated hydrocarbons.
  5. Statement is true
    Yes
    Statement
    Carboxylic acids contain the -COOH group.
Instructions
Tap True or False for each statement.

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Complete the definition of an amino acid

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Missing parts
  1. Answer
    amino
    Choices
    1. amino
    2. hydroxyl
    3. methyl
  2. Answer
    acidic
    Choices
    1. acidic
    2. basic
    3. neutral
  3. Answer
    α
    Choices
    1. α
    2. β
    3. γ
Complete the statement
Amino acids are organic compounds carrying an {0} group and an {1} group as substituents on the same carbon, the {2}-carbon.
The two groups sit on the same carbon, which is why they are called alpha. Source: syllabus Biology, Ch 9 Biomolecules.

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True or false: amino acids

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Questions
  1. Statement is true
    Yes
    Statement
    Amino acids carry both an amino and an acidic group.
  2. Statement is true
    Yes
    Statement
    Both groups sit on the same carbon in an α-amino acid.
  3. Statement is true
    Yes
    Statement
    Only twenty amino acids occur in proteins.
  4. Statement is true
    No
    Statement
    Every known amino acid occurs in proteins.
  5. Statement is true
    Yes
    Statement
    Amino acids are described as substituted methanes.
Only twenty of the many possible ones occur in proteins. Source: syllabus Biology, Ch 9 Biomolecules.

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More Chemistry topics

Chemical KineticsThe d- and f-Block Elements & Coordination CompoundsAldehydes, Ketones and Carboxylic AcidsElectrochemistryHaloalkanes, Alcohols and EthersSolutions