This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How is a Carboxyl Group commonly written? A) -OH. B) -COOH. C) -COH. D) -CHOH. Show Answer Correct Answer: B) -COOH. 2. Type of hybridization of electron clouds of carbon atoms in alkanes A) Sp-. B) -sp2. C) -sp3. D) S-s and p-p. Show Answer Correct Answer: C) -sp3. 3. The longer the hydrocarbon, the ..... the flammability? A) Lower. B) Higher. C) All the above. D) None of the above. Show Answer Correct Answer: A) Lower. 4. There are ..... organic compounds known to scientists. A) 9 million. B) 9000. C) 900. D) 90. E) 9. Show Answer Correct Answer: A) 9 million. 5. Which of the following is known as Baker-Nathan effect? A) Mesomeric effect. B) Inductive effect. C) Hyperconjugation. D) Electromeric effect. Show Answer Correct Answer: C) Hyperconjugation. 6. The specific rotation of pure (R)-2-butanol is-13.5$^\circ$. What % of a mixture of the two enantiomeric forms is (S)-2-butanol if the specific rotation of this mixture is-5.4$^\circ$? A) 40%. B) 30%. C) 70%. D) 60%. E) None of the above. Show Answer Correct Answer: A) 40%. 7. Which of the following will not give a white ppt, when AgNO$_{3}$ is added to its solution? A) NaCl. B) MgCl$_{2}$. C) KCl. D) CCl$_{4}$. Show Answer Correct Answer: D) CCl$_{4}$. 8. Which of the following groups can be classified as carbonyls? A) Aldehydes. B) Ketones. C) Esters. D) Aldehydes and ketones. Show Answer Correct Answer: D) Aldehydes and ketones. 9. The iupac name of 7 A) Propane. B) Seven. C) Ethane. D) None of the above. Show Answer Correct Answer: A) Propane. 10. Decreading order of stability of following alkenes isi) CH$_{3}$-CH=CH$_{2}$ii) CH$_{3}$-CH=CH-CH$_{3}$iii) CH$_{3}$-C=CH-CH$_{3}$ | CH$_{3}$$_{ }$CH$_{3}$CH$_{3}$$_{ }$| |iv) CH$_{3}$-C=C-CH$_{3}$ A) (i)>(ii)>(iii)>(iv). B) (iii)>(ii)>(i)>(iv). C) (iv)>(iii)>(ii)>(i). D) (ii)>(iii)>(iv)>(i). Show Answer Correct Answer: C) (iv)>(iii)>(ii)>(i). 11. Which of the following is more reactive towards electrophilic substitution? A) Toluene. B) O-Nitrotoluene. C) Cholorobenzene. D) Nitrobenzene. Show Answer Correct Answer: A) Toluene. 12. Which Hydrocarbon is More Volatile? A) Longer Hydrocarbon Chain. B) Shorter Hydrocarbon Chain. C) All the above. D) None of the above. Show Answer Correct Answer: B) Shorter Hydrocarbon Chain. 13. The class of alkynes includes A) C2H4. B) CH4. C) C2H6. D) C2H2. Show Answer Correct Answer: D) C2H2. 14. Which reagent is needed to change CH$_{3}$CH=CH$_{2 }$to CH$_{3}$CHClCH$_{3}$ A) Cl$_{2}$ (aq). B) HCl. C) SOCl$_{2}$. D) PCl$_{3}$. Show Answer Correct Answer: B) HCl. 15. What are the required reagents / conditions for the reaction below?CH$_{3}$CH$_{2}$Br $\rightarrow$ C$_{2}$H$_{4}$ A) H$_{2}$O / H$_{3}$PO$_{4}$ catalyst / high pressure. B) Concentrated HCl / ethanol / high temperature. C) H$_{2}$ / Ni catalyst / 150$^{o}$C. D) Concentrated KOH / ether / high temperature. Show Answer Correct Answer: D) Concentrated KOH / ether / high temperature. 16. Element bonds join together to form A) A friendship. B) More bonds. C) Energy. D) None of the above. Show Answer Correct Answer: C) Energy. 17. General formula for alkene A) C$_{n}$H$_{2n+2}$. B) C$_{n}$H$_{2n}$. C) C$_{n}$H$_{2n-2}$. D) CH. Show Answer Correct Answer: B) C$_{n}$H$_{2n}$. 18. Which compound is not in the same homologous series as the others? A) C5H12. B) C6H12. C) C7H16. D) C8H18. Show Answer Correct Answer: B) C6H12. 19. The name of this compaund C$_{4}$H$_{10}$ A) METHANE. B) HEXENE. C) BUTANOIC ACID. D) BUTANE. Show Answer Correct Answer: D) BUTANE. 20. Which homolgous series contains only C-C single bonds? A) Alkanes. B) Alkenes. C) Alcohols. D) Carboxylic acids. Show Answer Correct Answer: A) Alkanes. 21. A condition that occurs when more than one valid Lewis structure can be drawn for a molecule A) Coordinate covalent bond. B) Resonance. C) Endothermic. D) Structural formula. Show Answer Correct Answer: B) Resonance. 22. What is the number of missing hydrogen atoms in the following structure? C-O-C-C A) 5. B) 6. C) 7. D) 8. Show Answer Correct Answer: D) 8. 23. To convert propene to propan-2-ol, reagent used is A) Dilute sulfuric acid. B) Acidified permanganate. C) Ammonia. D) Concentrated sulfuric acid. Show Answer Correct Answer: A) Dilute sulfuric acid. 24. Which of the following is a false statement? A) Homolytic fission Of C-C bonds gives free radicals. B) Free radicals, carbonium ions or carbanions are reaction intermediates. C) Reaction between methane and chlorine in presence of sunlight proceeds via free radical. D) The electronegative atom in the carbon chain produces +I effect. Show Answer Correct Answer: D) The electronegative atom in the carbon chain produces +I effect. 25. What is the functional group present in alcohols? A) Hydroxyl group (-OH). B) Carbonyl group (C=O). C) Carboxyl group (-COOH). D) Amino group (-NH2). Show Answer Correct Answer: A) Hydroxyl group (-OH). ← 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 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 10Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books