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Aldehydes Ketones and Carboxylic Acids Test - 29

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Aldehydes Ketones and Carboxylic Acids Test - 29
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Acetone is used:
    Solution
    Acetone is used for extraction of essential oils and a constituent of liquid nail polish. Also. It is used in perfumes as it causes aroma.
  • Question 2
    1 / -0
    Which of the following is the flavouring agent for food, beverages etc?
    Solution
    Benzaldehyde is used as flavoring, perfumery and in dye industries.
    So, benzaldehyde is flavoring agent for food and beverages.
  • Question 3
    1 / -0
    Which acid is used in rubber industry as a coagulating agent?
    Solution
    Methanoic acid is used in the rubber industry as a coagulating agent because of its ability to form hydrogen bonding.
  • Question 4
    1 / -0
    Which of the following can be used as a solvent for cellulose acetate, cellulose nitrate, and celluloide?
    Solution
    Acetone is the most used industrial solvent, for many synthetic fibers. It is a good solvent for synthetic fibers as it is denaturant and it reduces explosive reactions.

    Hence, option D is correct.
  • Question 5
    1 / -0
    Which of the following statement is true?
    Solution
    A. Benzaldehyde is used in perfumery
    B. Formaldehyde is used for silvering mirrors because of its aldehydic group.
    C. Acetone is used as a commercial solvent for the various organic compound.
  • Question 6
    1 / -0
    Which of the following is used as an acid bath in dyeing cotton and wool?
    Solution
    Methanoic acid gives water-repellent finishing in dyeing. Hence formic acid or methanoic acid is used in both in the dyeing of cotton and wool.
  • Question 7
    1 / -0
    Which of the following chemical is used in removing ink stain from clothes?
    Solution
    oxalic acid is used to remove ink stains from clothes because it converts most insoluble iron compounds into a soluble complex ion.
  • Question 8
    1 / -0
    Find a wrong statement from the given statements.
    Solution
    Oxalic acid is used for making metal polish.
    Benzoic acid is used in the manufacturing of dyes.
    Oxalic acid in form of Ferrous potassium oxalate used as a developer in photography.
    But Benzoic acid is not used for making metal polish it is used as food preservative, antiseptic and for dyes.
  • Question 9
    1 / -0
    Which of the following is correct?
    Solution
    A. Formic acid is used in medicine for the treatment of gout.
    B. Benzoic acid is used as antiseptic in the preservation of fruit juice.
    C. Formic acid is used as a coagulating agent in rubber industry, not ethanoic acid.
    Hence, Option A
  • Question 10
    1 / -0
    IUPAC name of valeric acid is:
    Solution
    The common name of Pentanoic acid is valeric acid. Valeric acid, or pentanoic acid, is a straight-chain alkyl carboxylic acid with the chemical formula $$C_5H_{10}O_2$$.

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