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Class 9 & Class 10 Resources Center

Functional Groups – BSEB PYQ Based Practice

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Functional Groups – BSEB PYQ Based Practice

Instruction: Identify the functional group present in each compound. Write the name of the functional group.

  1. \(\mathrm{CH_3-CH_2-OH}\)
  2. \(\mathrm{CH_3-CHO}\)
  3. \(\mathrm{CH_3-CO-CH_3}\)
  4. \(\mathrm{CH_3-COOH}\)
  5. \(\mathrm{CH_3-CH_2-CH_2-OH}\)
  6. \(\mathrm{CH_3-CH_2-CHO}\)
  7. \(\mathrm{CH_3-CH_2-CO-CH_3}\)
  8. \(\mathrm{CH_3-CH_2-COOH}\)
  9. \(\mathrm{CH_3-OH}\)
  10. \(\mathrm{H-CHO}\)
  11. \(\mathrm{H-COOH}\)
  12. \(\mathrm{CH_3-CH(OH)-CH_3}\)
  13. \(\mathrm{CH_3-CH_2-CH_2-CHO}\)
  14. \(\mathrm{CH_3-CH_2-CO-CH_2-CH_3}\)
  15. \(\mathrm{CH_3-CH_2-CH_2-COOH}\)
  16. \(\mathrm{CH_3-CH_2-CH_2-CH_2-OH}\)
  17. \(\mathrm{CH_3-CH(CH_3)-CHO}\)
  18. \(\mathrm{CH_3-CH(CH_3)-COOH}\)
  19. \(\mathrm{CH_3-CO-CH(CH_3)-CH_3}\)
  20. \(\mathrm{CH_3-CH(OH)-CH_2-CH_3}\)
  1. Alcohol / Hydroxyl group (–OH)
  2. Aldehyde / Aldehydic group (–CHO)
  3. Ketone / Ketonic carbonyl group (>C=O)
  4. Carboxylic acid / Carboxyl group (–COOH)
  5. Alcohol / Hydroxyl group (–OH)
  6. Aldehyde / Aldehydic group (–CHO)
  7. Ketone / Ketonic carbonyl group (>C=O)
  8. Carboxylic acid / Carboxyl group (–COOH)
  9. Alcohol / Hydroxyl group (–OH)
  10. Aldehyde / Aldehydic group (–CHO)
  11. Carboxylic acid / Carboxyl group (–COOH)
  12. Alcohol / Hydroxyl group (–OH)
  13. Aldehyde / Aldehydic group (–CHO)
  14. Ketone / Ketonic carbonyl group (>C=O)
  15. Carboxylic acid / Carboxyl group (–COOH)
  16. Alcohol / Hydroxyl group (–OH)
  17. Aldehyde / Aldehydic group (–CHO)
  18. Carboxylic acid / Carboxyl group (–COOH)
  19. Ketone / Ketonic carbonyl group (>C=O)
  20. Alcohol / Hydroxyl group (–OH)

Functional Group – PYQ Style Questions

  1. The functional group present in ethanol is:
    \[ \mathrm{CH_3-CH_2-OH} \]
  2. The functional group present in propanal is:
    \[ \mathrm{CH_3-CH_2-CHO} \]
  3. The functional group present in butanone is:
    \[ \mathrm{CH_3-CO-CH_2-CH_3} \]
  4. The functional group present in ethanoic acid is:
    \[ \mathrm{CH_3-COOH} \]
  5. Identify the functional group: \[ \mathrm{-OH} \]
  6. Identify the functional group: \[ \mathrm{-CHO} \]
  7. Identify the functional group: \[ \mathrm{>C=O} \]
  8. Identify the functional group: \[ \mathrm{-COOH} \]
  9. Which functional group is present in methanal? \[ \mathrm{HCHO} \]
  10. Which functional group is present in propanone? \[ \mathrm{CH_3COCH_3} \]
  11. Which functional group is present in propanol? \[ \mathrm{C_3H_7OH} \]
  12. Which functional group is present in propanoic acid? \[ \mathrm{CH_3CH_2COOH} \]
  1. Hydroxyl / Alcohol (–OH)
  2. Aldehyde (–CHO)
  3. Ketone (>C=O)
  4. Carboxylic acid (–COOH)
  5. Hydroxyl / Alcohol
  6. Aldehyde
  7. Ketone / Carbonyl
  8. Carboxyl / Carboxylic acid
  9. Aldehyde
  10. Ketone
  11. Alcohol
  12. Carboxylic acid

Write the Functional Group Formula

Instruction: Write the structural formula of the functional group asked in each question.

  1. Write the functional group of alcohols.
  2. Write the functional group of aldehydes.
  3. Write the functional group of ketones.
  4. Write the functional group of carboxylic acids.
  5. Write the structural formula of the hydroxyl group.
  6. Write the structural formula of the aldehydic group.
  7. Write the structural formula of the ketonic group.
  8. Write the structural formula of the carboxyl group.
  1. \(\mathrm{-OH}\)
  2. \(\mathrm{-CHO}\)
  3. \(\mathrm{>C=O}\)
  4. \(\mathrm{-COOH}\)
  5. \(\mathrm{-OH}\)
  6. \(\mathrm{-CHO}\)
  7. \(\mathrm{>C=O}\)
  8. \(\mathrm{-COOH}\)

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