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 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 13 (40 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The sufficient condition for showing optical activity is ..... A) Molecule should have measurable amount of optical activity only. B) Polarimeter should have capacity of recording low-degree optical activity only. C) Chirality of molecule as a whole only. D) Both, the molecule should have measurable amount of optical activity and polarimeter should have capacity of recording low-degree optical activity. Show Answer Correct Answer: D) Both, the molecule should have measurable amount of optical activity and polarimeter should have capacity of recording low-degree optical activity. 2. An example of a cyclic organic compound is: A) Pentene. B) Propene. C) Butene. D) Benzene. Show Answer Correct Answer: D) Benzene. 3. The IUPAC name of acetylene is: A) Propane. B) Ethyne. C) Propyne. D) Ethene. Show Answer Correct Answer: B) Ethyne. 4. How many alcohols have the general formula C$_{4}$H$_{10}$O? A) 5. B) 6. C) 3. D) 4. Show Answer Correct Answer: D) 4. 5. Inorganic compounds are necessary for life functions. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 6. Organic polymer can be divided into A) Synthetic organic polymer. B) Natural organic polymer. C) All of the above. D) None of the above. Show Answer Correct Answer: C) All of the above. 7. What are the required reagents / conditions for the reaction below?CH$_{3}$COCl $\rightarrow$ CH$_{3}$COOH A) H$_{2}$O. B) H$_{2}$ / Ni catalyst / 150$^{o}$C. C) H$_{2}$O / H$_{3}$PO$_{4}$ catalyst / high pressure. D) Concentrated KOH / ether / high temperature. Show Answer Correct Answer: A) H$_{2}$O. 8. Carbon will always form ..... bonds. A) $4$. B) 4 Mathematical EquivalenceON. C) All the above. D) None of the above. Show Answer Correct Answer: A) $4$. 9. What functional group is present in a carboxylic acid? A) Amino group. B) Aldehyde group. C) Hydroxyl group. D) Carboxyl group. Show Answer Correct Answer: D) Carboxyl group. 10. Which statements about the chlorine free radical are correct? I.It has 18 electrons. II.It is an uncharged species. III.It is formed by homolytic fission. A) I and II only. B) I and III only. C) II and III only. D) I, II and III. Show Answer Correct Answer: C) II and III only. 11. What is a good name for the turtles? A) Turtle 1, 2. B) Humboldt. C) Watson. D) Crick. Show Answer Correct Answer: A) Turtle 1, 2. 12. Which method can be applied to separate a mixture of camphor and benzoic acid? A) Crystallization. B) Chemical methods. C) Sublimation. D) Extraction with solvent. Show Answer Correct Answer: B) Chemical methods. 13. Carbon has 4 valence electrons. What is the valence configuration? A) 1s2 p2. B) 3s2 p2. C) 2s2 p2. D) 4s2 p2. Show Answer Correct Answer: C) 2s2 p2. 14. Select the correct statement from the following option. A) Meso compound possess both plane of symmetry and centre of symmetry. B) Meso compound possess either plane or centre of symmetry. C) Meso compound does not possess either plane or centre of symmetry. D) Meso compounds are externally compensated form. Show Answer Correct Answer: B) Meso compound possess either plane or centre of symmetry. 15. What type of reaction occurs when an alcohol reacts with an organic acid? A) Substitution. B) Hydrolysis. C) Addition. D) Esterification. Show Answer Correct Answer: D) Esterification. 16. What is the suffix for double bond hydrocarbons? A) -ol. B) -ane. C) -one. D) -ene. Show Answer Correct Answer: D) -ene. 17. Which term represents an organic reaction that produces soap? A) Saponification. B) Solidification. C) Esterification. D) Fermentation. Show Answer Correct Answer: A) Saponification. 18. C$_{5}$H$_{12}$ + Br$_{2}$ $\rightarrow$ C$_{5}$H$_{11}$Br + HBr This reaction is called ..... A) Combustion. B) Cracking. C) Substitution. D) Addition. Show Answer Correct Answer: C) Substitution. 19. Hydrocarbons where each carbon is bonded to four other atoms, and all bonds are single bonds. A) Alkanes. B) Alkenes. C) Alkynes. D) None of the above. Show Answer Correct Answer: A) Alkanes. 20. Isomer functional groups are compounds that have different functional groups, but the same molecular formula, such as: A) Alcohol and Ether. B) Alcohol and Ketone. C) Ether and Ketone. D) Ether and Esther. Show Answer Correct Answer: A) Alcohol and Ether. 21. Chiral carbons will produce ..... A) Optical isomers. B) Monomers. C) Structural isomers. D) Polymers. Show Answer Correct Answer: A) Optical isomers. 22. For carbonate ions, how many resonance structures can be drawn? A) 4. B) 3. C) 2. D) 5. Show Answer Correct Answer: B) 3. 23. This states that organic compounds could only be created by living organisms A) Organic Chemistry Theory. B) VSEPR Theory. C) Vital Force Theory. D) Vital Compounds Theory. Show Answer Correct Answer: C) Vital Force Theory. 24. What are the required reagents / conditions for the reaction below?C$_{2}$H$_{6}$ $\rightarrow$ CH$_{3}$CH$_{2}$Br A) KBr / ethanol / warm. B) Br$_{2}$ / UV light. C) HBr. D) Br$_{2}$. Show Answer Correct Answer: B) Br$_{2}$ / UV light. 25. Saturated hydrocarbons A) Alkanes. B) Alkenes. C) Alkadienes. D) Alkynes. E) Alcohols. Show Answer Correct Answer: A) Alkanes. 26. In the combustion reaction when the amount of oxygen is limited ..... gas is produced A) Carbon dioxide. B) Carbon monoxide. C) Hydrogen. D) Nitrogen. Show Answer Correct Answer: B) Carbon monoxide. 27. Is pentane a saturated or unsaturated hydrocarbon? A) Saturated. B) Unsaturated. C) All the above. D) None of the above. Show Answer Correct Answer: A) Saturated. 28. Grignard reagent on reaction with HCHO give A) Acid. B) 3$^{0}$alcohol. C) 1$^{0}$alcohol. D) 2$^{0}$alcohol. Show Answer Correct Answer: C) 1$^{0}$alcohol. 29. A resonance hybrid represents the pi bond of an allylic carbocation as being delocalized over all three carbon atoms A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 30. When a carbon atom has a positive charge A) Carbocation. B) Carbanion. C) All the above. D) None of the above. Show Answer Correct Answer: A) Carbocation. 31. Which can be both an empirical and molecular formula of a stable compound? A) P$_{4}$O$_{10}$. B) CH$_{2}$O. C) NH$_{2}$. D) CH$_{3}$. Show Answer Correct Answer: B) CH$_{2}$O. 32. Choose the correct option that represent the following structureO||C-C-C-C-C-C-C A) Heptanona. B) 4 heptanona. C) Is a mistake. D) 4 heptona. Show Answer Correct Answer: B) 4 heptanona. 33. Stability or iso-butylene can be best explained by A) Mesomeric effect. B) Hyperconjugative effect. C) Steric effect. D) Inductive effect. Show Answer Correct Answer: B) Hyperconjugative effect. 34. In acids and bases theory, a substance that donates proton (H+) is known as? A) Bronsted-Lowry acid. B) Lewis base. C) Lewis acid. D) Bronsted-Lowry base. Show Answer Correct Answer: A) Bronsted-Lowry acid. 35. Which of the following is the strongest type of intermolecular bond? A) Hydrogen bonding. B) Ion-induced dipole interactions. C) Dipole-dipole interactions. D) London dispersion forces. Show Answer Correct Answer: A) Hydrogen bonding. 36. "Compound that have the same chemical formula but different chemical structure" is called? A) Isomers. B) Isotopes. C) Tautomer. D) Allotropes. Show Answer Correct Answer: A) Isomers. 37. Water is known as a universal biological solvent because ..... A) It is non-polar and cannot dissolve ions. B) It is cohesive and can form droplets. C) It is polar and can dissolve both negative and positive ions. D) It dissolves every substance on Earth. Show Answer Correct Answer: C) It is polar and can dissolve both negative and positive ions. 38. Which are the properties of Organic compounds? I. Containing elements:C, H, O, N, P, S, X II. Insoluble in water III. Burn easily IV. Conduct electricity V. Low melting and boiling points VI. are easily volatile A) I, II, III, V, VI. B) I, II, III, IV. C) I, II, III, IV, V, VI. D) I, III, IV, V, VI. Show Answer Correct Answer: A) I, II, III, V, VI. 39. Nucleophile is a species that should have A) Positive charge. B) A pair of electrons to donate. C) Electron deficient species. D) None of the above. Show Answer Correct Answer: B) A pair of electrons to donate. 40. Few pairs of molecules are given below, which pair has more polar molecules? A) H$_{3}$C-OH, H$_{3}$C-SH. B) H$_{3}$C-Cl, H$_{3}$C-Br. C) H$_{3}$C-NH$_{2}$, H$_{3}$C-OH. D) H$_{3}$C-H, H$_{3}$C-Br. Show Answer Correct Answer: C) H$_{3}$C-NH$_{2}$, H$_{3}$C-OH. ← PreviousRelated 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