This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Free radicals can undergo A) Rearrangement to a more stable free radical. B) Combination with other free radical. C) Decomposition to give another free radical. D) All are correct. Show Answer Correct Answer: D) All are correct. 2. The name for a hydrocarbon that has 6 carbons in a ring with delocalized double bonds is A) Cyclohexane. B) Cyclohexene. C) Benzene. D) Hexene. Show Answer Correct Answer: C) Benzene. 3. What functional group is present in an aldehyde? A) Carbonyl group. B) Ester group. C) Amino group. D) Hydroxyl group. Show Answer Correct Answer: A) Carbonyl group. 4. Which reagent is needed to change CH$_{3}$CH$_{2}$OH to CH$_{3}$COOH A) NH$_{3}$(alc). B) H$_{2}$O/ dilute H$_{2}$SO$_{4}$. C) Cr$_{2}$O$_{7}$$^{2-}$/H$^{+}$. D) KOH (aq). Show Answer Correct Answer: C) Cr$_{2}$O$_{7}$$^{2-}$/H$^{+}$. 5. What is the IUPAC name for the compound with the molecular formula $C_3H_8O$ A) Propanol. B) Propanone. C) Propanal. D) Propanoic acid. Show Answer Correct Answer: A) Propanol. 6. The organic compound obtained as the end product of the fermentation of sugar solution is: A) Methanol. B) Ethanol. C) Ethane. D) Methanoic acid. Show Answer Correct Answer: B) Ethanol. 7. Which element must be present in all organic compounds? A) Nitrogen. B) Hydrogen. C) Carbon. D) Oxygen. Show Answer Correct Answer: C) Carbon. 8. How to determine that a molecule exhibit cis-trans isomerism? A) Restricted rotation in a carbon-carbon single bond of alkenes. B) Each carbon of a site of restricted rotation has 2 different atoms or groups attached to it. C) Exist in cyclic compouds only. D) Similar chemical properties. Show Answer Correct Answer: B) Each carbon of a site of restricted rotation has 2 different atoms or groups attached to it. 9. What are the required reagents / conditions for the reaction below?C$_{2}$H$_{4}$ $\rightarrow$ CH$_{3}$CH$_{2}$OH A) Concentrated H$_{2}$SO$_{4}$ / high temperature. B) H$_{2}$O / H$_{3}$PO$_{4}$ catalyst / high pressure. C) Concentrated KOH / ether / high temperature. D) CH$_{3}$CH$_{2}$OH / concentrated H$_{2}$SO$_{4}$ / warm. Show Answer Correct Answer: B) H$_{2}$O / H$_{3}$PO$_{4}$ catalyst / high pressure. 10. The IUPAC name of CHO.CH2.CH.CH.COOH will be A) Pent2ene, 1oicacid, 5al. B) Bute2ene1oic5al. C) Pent1ene2al3oicacid. D) None of the above. Show Answer Correct Answer: A) Pent2ene, 1oicacid, 5al. 11. Isomerism is defined as organic compound which have ..... A) Same arrangement and molecular formula. B) Same molecular formula but different arrangement. C) Different molecular formula and arrangement. D) Different molecular formula but same arrangement. Show Answer Correct Answer: B) Same molecular formula but different arrangement. 12. What compounds are produced in the complete combustion of hydrocarbons? A) Carbon dioxide and water. B) Carbon monoxide and water. C) Carbon dioxide and nitrogen. D) Water and nitrogen. Show Answer Correct Answer: A) Carbon dioxide and water. 13. Electron group includes lone pairs A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 14. Which compound would be the final product formed from reacting ethene with a large excess of bromine in the presence of UV light? A) C$_{2}$H$_{5}$Br. B) C$_{2}$H$_{4}$Br$_{2}$. C) C$_{2}$H$_{3}$Br$_{3}$. D) C$_{2}$Br$_{6}$. Show Answer Correct Answer: D) C$_{2}$Br$_{6}$. 15. The suffix used for the aldehydes A) Al. B) Ol. C) Ad. D) None of the above. Show Answer Correct Answer: A) Al. 16. Which of the following compounds is isomeric with 2, 2, 4, 4-tetramethylhexane? A) 3-ethyl-2, 2-dimethylpentane. B) 4-ethyl-3-methyl-4-n-propyloctane. C) 4-isopropylheptane. D) 4, 4-diethyl-3-methylheptane. Show Answer Correct Answer: C) 4-isopropylheptane. 17. Chlorination of ethane is carried out in presence of A) Anhydrous AlCl3. B) Mercuric chloride. C) Ultraviolet. D) Zinc chloride. Show Answer Correct Answer: C) Ultraviolet. 18. What is the definition of a hydrocarbon? A) A compound made of hydrogen and carbon only. B) A compound that includes hydrogen or carbon. C) A mixture that includes hydrogen and carbon. D) A mixture of hydrogen and carbon only. Show Answer Correct Answer: A) A compound made of hydrogen and carbon only. 19. Which one of the following are NOT one of the most important elements to life? A) O. B) C. C) P. D) Mg. E) N. Show Answer Correct Answer: D) Mg. 20. Reactivity of SN$^{1 }$ Is A) 1$^{0}$ > 2$^{0}$ > 3$^{0}$. B) 1$^{0}$ <2$^{0}$ > 3$^{0}$. C) 1$^{0}$ > 2$^{0}$ < 3$^{0}$. D) 3$^{0}$ > 2$^{0}$> 1$^{0}$. Show Answer Correct Answer: D) 3$^{0}$ > 2$^{0}$> 1$^{0}$. 21. This is the side-to-side overlapping of 2 atomic orbitals that exist above and below the intermolecular axis A) Sigma bond. B) Pi bond. C) Carbon bond. D) Mighty bond. Show Answer Correct Answer: B) Pi bond. 22. Which of the following compound(s) exhibit(s) cis-trans isomerism?(1) 1, 2-dibromo-1, 2-dichloroethene(2) 3, 3-dibromo-2-chloropropene(3) 1, 2-dichloropropene A) Only. B) Only. C) And (3) only. D) And (3) only. Show Answer Correct Answer: C) And (3) only. 23. Which of the following alkane has higher boiling point? A) 2-methylbutane. B) N-pentane. C) 2, 2-dimethylpropane. D) Ethane. Show Answer Correct Answer: B) N-pentane. 24. Which of the following is a functional group in organic chemistry? A) Hydroxyl group. B) Sulfate group. C) Nitrate group. D) Phosphate group. Show Answer Correct Answer: A) Hydroxyl group. 25. Hinsberg test is used to distinguish A) 1$^{o}$, 2$^{o}$ and 3$^{o}$ amines. B) 1$^{o}$, 2$^{o}$ and 3$^{o}$ amides. C) 1$^{o}$, 2$^{o}$ and 3$^{o}$ nitro compounds. D) 1$^{o}$, 2$^{o}$ and 3$^{o}$ aldehydes. Show Answer Correct Answer: A) 1$^{o}$, 2$^{o}$ and 3$^{o}$ amines. ← PreviousNext →Related 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 8Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 9Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books