This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Chemistry Part Ii > Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 12 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is not an example of a function of lipids? A) Energy storage. B) Catalyzing chemical reactions. C) Insulation. D) Hormone production. Show Answer Correct Answer: B) Catalyzing chemical reactions. 2. Alkane molecules are made of which elements? A) Carbon and hydrogen. B) Carbon, hydrogen and oxygen. C) Carbon and oxygen. D) Carbon, nitrogen and hydrogen. Show Answer Correct Answer: A) Carbon and hydrogen. 3. What catalyst is used in making esters? A) Sodium hydroxide. B) Sulfuric acid. C) Iron. D) Lithium oxide. Show Answer Correct Answer: B) Sulfuric acid. 4. The number of C-H bonds in propane molecule are: A) Six. B) Seven. C) Eight. D) Ten. Show Answer Correct Answer: C) Eight. 5. Which of the following represents 3-methypena-1, 3-diene? A) CH$_{3}$CH=C(CH$_{3}$)$_{2}$. B) CH$_{2}$=CH(CH$_{2}$)$_{2}$CH$_{3}$. C) CH$_{3}$CH=C(CH$_{3}$)CH=CH$_{2}$. D) CH$_{2}$=CHCH(CH$_{3}$)CH$_{2}$CH$_{3}$. Show Answer Correct Answer: C) CH$_{3}$CH=C(CH$_{3}$)CH=CH$_{2}$. 6. Macromolecule means: A) A very small molecule. B) A double unit of a molecule. C) A single unit of a molecule. D) A very large molecule. Show Answer Correct Answer: D) A very large molecule. 7. Hydrogen atoms are substituents (side chains) in hydrocarbons. A) True. B) False. C) I have no idea. D) None of the above. Show Answer Correct Answer: B) False. 8. Aliphatic hydrocarbons consist only single bonds, and so are called ..... hydrocarbons. A) Unsaturated. B) Aromatic. C) Chain. D) Saturated. Show Answer Correct Answer: D) Saturated. 9. Organic compounds must have which two elements? A) Carbon and Oxygen. B) Oxygen and hydrogen. C) Carbon and Hydrogen. D) None of the above. Show Answer Correct Answer: C) Carbon and Hydrogen. 10. Which one of the following mechanisms is not involved in the reaction sequence below?CH$_{3}$CH$_{3}$ $\rightarrow$ CH$_{3}$CH$_{2}$Cl $\rightarrow$ CH$_{3}$CH$_{2}$OH $\rightarrow$ CH$_{2}$=CH$_{2}$ $\rightarrow$ CH$_{3}$CH$_{2}$Br A) Electrophilic addition. B) Free-radical substitution. C) Nucleophilic substitution. D) Electrophilic substitution. Show Answer Correct Answer: D) Electrophilic substitution. 11. Which pair of compounds can be distinguished by reacting them with dilute bromine water in the dark? A) CH$_{3}$CH$_{2}$COOH and CH$_{3}$CH$_{2}$CHO. B) CH$_{3}$CH$_{2}$CHCHCH$_{3}$ and CH$_{3}$CH$_{2}$CH$_{2}$CH$_{2}$CH$_{3}$. C) CH$_{3}$CH$_{2}$CH(CH$_{3}$)$_{2}$ and CH$_{3}$CH$_{2}$CH$_{2}$CH$_{2}$CH$_{3}$. D) CH$_{3}$CH$_{2}$CH$_{2}$CHBrCH$_{3}$ and CH$_{3}$CH$_{2}$CHBrCH$_{2}$CH$_{3 }$. Show Answer Correct Answer: B) CH$_{3}$CH$_{2}$CHCHCH$_{3}$ and CH$_{3}$CH$_{2}$CH$_{2}$CH$_{2}$CH$_{3}$. 12. Which functional group contains a halogen atom? A) Halogenize. B) Halogenate. C) Haloform. D) Halide. Show Answer Correct Answer: D) Halide. 13. All homologous series varies by a group of A) CH$_{3}$. B) CH$_{2}$. C) CH. D) CH$_{4}$. Show Answer Correct Answer: B) CH$_{2}$. 14. Polymers are made up of ..... A) Amino Acids. B) Monomers. C) Dimers. D) Unimers. Show Answer Correct Answer: B) Monomers. 15. Ethene, propene and butene are all members of the same homologous series.Which statement explains why ethene, propene and butene have similar chemical properties? A) They all have the same functional group. B) They are all gases at room temperature. C) They are all hydrocarbons. D) They are all organic. Show Answer Correct Answer: A) They all have the same functional group. 16. Applying IUPAC rules, what is the name of CH$_{3}$CH(CH$_{3}$)CH$_{2}$COOH? A) Pentanoic acid. B) 2, 3-dimethylpropanoic acid. C) 2-methylbutanoic acid. D) 3-methylbutanoic acid. Show Answer Correct Answer: D) 3-methylbutanoic acid. 17. Which type of polymerisation uses two different monomers, both contain a functional group at each end? A) Addition polymerisation. B) Condensation polymerisation. C) All the above. D) None of the above. Show Answer Correct Answer: B) Condensation polymerisation. 18. Main product from the following reaction is ..... A) Br-CH$_{2}$-CH(CH$_{3}$)-CH$_{2}$-OH. B) CH$_{3}$-CH(CH$_{3}$)-CH$_{2}$(Br)-CH$_{3}$. C) CH$_{3}$-CH(CH$_{2}$Br)-CH$_{2}$-CH$_{3}$. D) CH$_{3}$-CH(CH$_{3}$)-CH$_{2}$-CH$_{2}$-Br. Show Answer Correct Answer: D) CH$_{3}$-CH(CH$_{3}$)-CH$_{2}$-CH$_{2}$-Br. 19. P-dichlorobenzene has higher MELTING point than its o-and m-isomers. Why? A) O-dichlorobenzene is more polar than p-isomer. B) P-isomer has a symmetrical crystalline structure. C) Due to intra molecular H-bonding in o-isomer. D) All of these are correct. Show Answer Correct Answer: B) P-isomer has a symmetrical crystalline structure. 20. Which of the following could be the molecular formula for an alkane? A) C$_{7}$H$_{16}$. B) C$_{7}$H$_{10}$. C) C$_{7}$H$_{14}$. D) C$_{7}$H$_{12}$. Show Answer Correct Answer: A) C$_{7}$H$_{16}$. 21. INORGANIC CHEMISTRY STUDY OF SUBSTANCES THAT DON'T CONTAIN CARBON BUT MAY CONTAIN WHICH ELEMENT A) OXYGEN. B) SILCON. C) NITROGEN. D) HYDROGEN. Show Answer Correct Answer: D) HYDROGEN. 22. What is the mechanism of the reaction between ethane and chlorine in sunlight? A) Free radical substitution. B) Electrophilic substitution. C) Free radical addition. D) Electrophilic addition. Show Answer Correct Answer: A) Free radical substitution. 23. How many covalent bonds must a Carbon atom form in a molecule? A) 6. B) 8. C) 2. D) 4. Show Answer Correct Answer: D) 4. 24. Which is the first organic compound that can be synthesized in the laboratory? A) Glucose:C$_{6}$H$_{12}$O$_{6}$. B) Acetic acid:CH$_{3}$COOH. C) Urea:(NH$_{2}$)$_{2}$CO. D) Methanol:CH$_{3}$OH. Show Answer Correct Answer: C) Urea:(NH$_{2}$)$_{2}$CO. 25. Aryl halides are LESS reactive towards nucleophilic substitution reactions as compared to alkyl halides due to A) Presence of double bonds in aryl halides. B) Formation of a more stable carbonium ion in aryl halides. C) Inductive effect in aryl halides. D) Resonance stabilization in aryl halides. Show Answer Correct Answer: D) Resonance stabilization in aryl halides. 26. An aryl alcohol can be found in which of the following compounds? A) 1, 3, 5-cyclohexa-trien-1-ol. B) Cyclohexanol. C) Benzene-1, 2-diol. D) Benzyl alcohol. Show Answer Correct Answer: C) Benzene-1, 2-diol. 27. Organic compounds made only of the elements carbon and hydrogen are called ..... A) Hydrocarbons. B) Carbohydrogens. C) Hydrocarbonates. D) Carbohydrates. Show Answer Correct Answer: A) Hydrocarbons. 28. Temperature at which vapour pressure becomes equal to atmospheric pressure is called A) Freezing point. B) Boiling point. C) Melting point. D) None of the above. Show Answer Correct Answer: B) Boiling point. 29. The functional group present in ether A) -CHO. B) -O-. C) -COOH. D) -CO-NH$_{2}$. Show Answer Correct Answer: B) -O-. 30. How many sigma bond in chlorobenzene A) 6. B) 15. C) 12. D) 10. Show Answer Correct Answer: C) 12. 31. Nature of bonding in carbon compounds is A) Metallic bonding. B) Ionic bonding. C) Covalent bonding. D) Hydrogen bonding. Show Answer Correct Answer: C) Covalent bonding. 32. Molecules with double/tripple bond A) Saturated fats. B) Alkynes. C) Unsaturated fats. D) Carbocilic acids. Show Answer Correct Answer: C) Unsaturated fats. 33. In which of the reaction, the enolate ion is not formed: A) Perkin reaction. B) Crossed Aldol condensation. C) Cannizzaro Reaction. D) Claisen Condensation. Show Answer Correct Answer: C) Cannizzaro Reaction. 34. Structural formula not only show the actual number of atom but it shows how they are bonded. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 35. Is the following compound a hydrocarbon?NaOHGive your answer as yes or no only. A) YES. B) NO. C) All the above. D) None of the above. Show Answer Correct Answer: B) NO. 36. This unique ability of carbon is defined as the ability of atoms to form stable bonds. A) Polar Bonding. B) Carbonation. C) Covalent Bonding. D) Catenation. Show Answer Correct Answer: D) Catenation. 37. Main product from the following reaction is ..... CH3-C(CH3) = CH-CH3 + HBr $\rightarrow$ A) CH3-CH(CH3)-CHBr-CH3. B) CH2Br-CH(CH3)-CH2-CH3. C) CH3-CH(CH3)-CH2-CH2Br. D) CH3-CBr(CH3)-CH2-CH3. Show Answer Correct Answer: D) CH3-CBr(CH3)-CH2-CH3. 38. The valency of carbon is A) 4. B) 6. C) 5. D) 3. Show Answer Correct Answer: A) 4. 39. Upon combustion, a hydrocarbon produces 29, 10g CO$_{2}$ and 11, 58g H$_{2}$O. What is the empirical formula of hydrocarbon? (C:12g/mol, H:1g/mol) A) CH$_{4}$. B) CH$_{2}$. C) CH$_{3}$. D) CH. Show Answer Correct Answer: B) CH$_{2}$. 40. What contains triglycerides? A) Fats, oils and waxes. B) Sugar. C) Nucleotides. D) Nitrogenous base. Show Answer Correct Answer: A) Fats, oils and waxes. 41. Which statement describes the two isomers of butane? A) They have the same molecular formula but different structural formulas. B) They have the same molecular formula and the same structural formula. C) They have different molecular formulas and different structural formulas. D) They have different molecular formulas but the same structural formula. Show Answer Correct Answer: A) They have the same molecular formula but different structural formulas. 42. This theory describes a covalent bond between two atoms in terms of in-phase overlap of a half-filled orbital of one atom with a half-filled orbital of another atom. A) Orbital Overlapping. B) Valence Bond Theory. C) VSEPR Theory. D) Hybridization. Show Answer Correct Answer: B) Valence Bond Theory. 43. Reagent used to convert 2-chloropropane to Propene A) Conc KOH. B) HCl. C) Alc KOH. D) Ammonia. Show Answer Correct Answer: C) Alc KOH. 44. If an alkane has 19 carbon atoms, how many hydrogen atoms will it have? A) 38. B) 19. C) 40. D) 21. Show Answer Correct Answer: C) 40. 45. The functional group present in the ketone A) -CO-NH$_{2}$. B) R-CO-R. C) -COOH. D) -OH. Show Answer Correct Answer: B) R-CO-R. 46. An organic compound undergoes addition reactions and gives a red colour precipitate with ammoniacal cuprous chloride. Therefore, the organic compound could be: A) Ethane. B) Ethyne. C) Ethanol. D) Ethene. Show Answer Correct Answer: B) Ethyne. 47. The group made up of alcohols and acids A) Carbocilic acids. B) Ethers. C) Alkynes. D) Esters. Show Answer Correct Answer: D) Esters. 48. Which one of the following characteristics is not correct for all of the members of the same homologous series? A) Varying physical properties, i.e. change in a predictable way. B) Different functional group. C) Same general formula. D) Similar chemical properties, i.e. undergo the same reactions. Show Answer Correct Answer: B) Different functional group. 49. When two monosaccharides are joined in a synthesis reaction, it forms a: A) Polysaccharide. B) Disaccharide. C) Fatty acid. D) Water molecule. Show Answer Correct Answer: B) Disaccharide. 50. Of an organic compound containing sulphur produces 1.02g of BaSO$_{4}$. The percentage of sulphur in the compound is A) 8.98%. B) 7.26%. C) 10%. D) 6.42%. Show Answer Correct Answer: D) 6.42%. 51. This type of bond allows free rotation of the parts of the molecule with respect to each other A) Covalent bond. B) Pi bond. C) Electron bond. D) Sigma bond. Show Answer Correct Answer: D) Sigma bond. 52. Carbon has an atomic number of ..... , with ..... , valence electrons. A) 6; 4. B) 16; 4. C) 4; 2. D) 12; 2. Show Answer Correct Answer: A) 6; 4. 53. All organic compounds must have this element: A) Oxygen. B) Carbon. C) Hydrogen. D) Potassium. Show Answer Correct Answer: B) Carbon. 54. Structural isomers are compounds that have A) The same molecular formula but different structures. B) The same molecular formula and the same structure. C) Different molecular formulas and different structures. D) Different molecular formulas but the same structure. Show Answer Correct Answer: A) The same molecular formula but different structures. 55. Both diamond and carbon dioxide (CO$_{2}$) contains C atom(s). Can they be considered as organic? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 56. Turns MnO$_{4}$$^{-}$ from purple to brown A) Alcohol. B) Alkene. C) Amine. D) Alkane. Show Answer Correct Answer: B) Alkene. 57. What process is used to separate crude oil in hydrocarbons with different chain lengths? A) Cracking. B) Fractional distillation. C) Distillation. D) Polymerisation. Show Answer Correct Answer: B) Fractional distillation. 58. Poly means ..... A) Two. B) One. C) Many. D) None of the above. Show Answer Correct Answer: C) Many. 59. Which one of the following pairs reacts to form an organic product with only 2 singlets in its proton n.m.r. spectrum? A) Ethene and bromine. B) Propan-2-ol and acidified potassium dichromate(VI). C) Ethanol and concentrated sulphuric acid. D) Epoxyethane and water in the presence of dilute sulphuric acid. Show Answer Correct Answer: D) Epoxyethane and water in the presence of dilute sulphuric acid. 60. Type of reaction (unbalanced).CH$_{3}$CH$_{2}$OH $\rightarrow$ CH$_{2}$=CH$_{2}$ A) Acid base. B) Oxidation. C) Elimination. D) Substitution. Show Answer Correct Answer: C) Elimination. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 1Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 2Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 3Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 4Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 5Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 6Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 7Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books