CBSE Class 12 · Chemistry

Inorganic and Organic Functional Groups

20 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 20 questions

  1. What happens when tertiary butyl bromide reacts with sodium methoxide in the Williamson ether synthesis?
  2. Which of the following carbonyl compounds does NOT undergo aldol condensation in the presence of dilute alkali?
  3. What products are obtained when formaldehyde () is heated with concentrated () sodium hydroxide solution?
  4. Tollens' reagent (ammoniacal silver nitrate solution) is used to distinguish aldehydes from ketones. What is the observable positive result?
  5. Which reagent combination is utilized in the Clemmensen reduction to convert a carbonyl group () into a methylene group ()?
  6. What product is obtained when propanoic acid is treated with bromine in the presence of red phosphorus followed by hydrolysis?
  7. Which of the following substituted acetic acids is the strongest Brønsted acid in aqueous solution?
  8. Why CANNOT aromatic primary amines like aniline be prepared by Gabriel phthalimide synthesis?
  9. What is the primary organic product formed when propanamide () is heated with bromine and aqueous ?
  10. The carbylamine test, which produces an extremely foul-smelling isocyanide, is a diagnostic test specific to which functional group?
  11. What is the chemical name and formula of Hinsberg's reagent used to distinguish primary, secondary, and tertiary amines?
  12. What is the correct order of basic strength of methyl-substituted amines in aqueous medium?
  13. Which of the following carbohydrates is a non-reducing disaccharide that does NOT reduce Tollens' or Fehling's reagents?
  14. What is the spontaneous change in specific optical rotation of an optically active carbohydrate solution until an equilibrium value is reached termed?
  15. Which intermolecular force is primarily responsible for stabilizing the alpha-helix and beta-pleated sheet secondary structures of proteins?
  16. When a globular protein is subjected to thermal denaturation by boiling, which level of protein structural organization remains intact?
  17. Which pyrimidine nitrogenous base is present exclusively in RNA and is absent from DNA molecules?
  18. Coordination isomerism in inorganic chemistry occurs exclusively in compounds that satisfy which condition?
  19. What is the standard Gibbs free energy change () for a cell reaction with electrons and standard cell potential ? (…
  20. How many distinct aldol condensation products (excluding stereoisomers) can be formed when an equimolar mixture of ethanal and propanal is treated with dilute ?

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