Practice test

Organic chemistry - Test Set 1

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    Formula of ethanol____________ is.
    1. CH5OH
    2. C2H6OH
    3. CH3CH2OH2
    4. C2H5OH
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  2. Question 2

    What are the elements present in alcohol?
    1. Nitrogen, hydrogen, oxygen
    2. Carbon, hydrogen, oxygen
    3. Oxygen, carbon, nitrogen
    4. Hydrogen, chlorine, oxygen
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  3. Question 3

    When an overdose of _________ is consumed, it slows down the metabolic process and degrades the central nervous system.
    1. methanol
    2. propanol
    3. ethanol
    4. butanol
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  4. Question 4

    What is the chemical formula of glycerol?
    1. C2H5O2
    2. C3H7OH
    3. C3H5OH
    4. C3H8O3
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  5. Question 5

    Fill in the blank with the most appropriate option.
    Denaturation of ethanol is done for___________.
    1. To increase its stability
    2. Making it unsuitable for drinking
    3. Making it suitable for drinking
    4. Making it suitable as antimicrobial
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  6. Question 6

    Which of the following is used in the preparation of tincture iodine, cough syrup and many tonics?
    1. methanol
    2. ethanoic acid
    3. acetic acid
    4. ethanol
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  7. Question 7

    As a dehydrating agent to convert ethanol to ethane___________ Is used.
    1. nickel
    2. sunlight
    3. concentrated sulphuric acid
    4. heat
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  8. Question 8

    How many hydrogen atoms are present in a molecule of ethanol?
    1. Four
    2. Five
    3. Six
    4. Seven
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  9. Question 9

    ______________ is the simplest alcohol.
    1. butanol
    2. ethanol
    3. ethyl alcohol
    4. methanol
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  10. Question 10

    To prevent the misuse of ethanol produced for industrial use, it is used as a toxic substance __________ Is mixed with it to make it unsuitable for drinking.
    1. methanol
    2. acetone
    3. ester
    4. ethanol
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  11. Question 11

    The colours are added to the alcohol to make it blue, so that it can be easily identified. This alcohol is called .......... alcohol.
    1. mature
    2. non-poisonous
    3. poisonous (deformed)
    4. natural
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  12. Question 12

    From which of the following can ethanol be obtained?
    1. Rice
    2. Sunflower
    3. Sugarcane
    4. Petrol
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  13. Question 13

    Which of the following pairs of acid and the substance in which it is found is incorrectly matched?
    1. Ascorbic acid-Tamarind
    2. Lactic acid-Curd
    3. Oxalic acid-Spinach
    4. Acetic acid-Vinegar
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  14. Question 14

    Lactic acid is a:
    1. Three-carbon molecule
    2. One-carbon molecule
    3. Two-carbon molecule
    4. Four-carbon molecule
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  15. Question 15

    The common name for athenoic acid is____________.
    1. sodium hydroxide
    2. alcohol
    3. fuming acid
    4. acetic acid
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  16. Question 16

    Which of the following acids is present in red ants?
    1. formic acid
    2. tannic acid
    3. oxalic acid
    4. malic acid
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  17. Question 17

    Which of the following is organic acid?
    1. citric acid
    2. sulphuric acid
    3. nitric acid
    4. phosphoric acid
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  18. Question 18

    Which of the following contains ethanoic acid?
    1. Lemon juice
    2. Orange juice
    3. White vinegar
    4. Tomato
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  19. Question 19

    Which of the following is the main organic acid found in grapes?
    1. amino acid
    2. tartaric acid
    3. glycolic acid
    4. succinic acid
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  20. Question 20

    What is Vinegar made of?
    1. sulphuric acid
    2. hydrochloric acid
    3. oxalic acid
    4. acetic acid
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