This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 14 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which type of intermediate (A) is formed during the reaction?CH$_{3}$CH$_{2}$-N=N-CH$_{2}$CH$_{3 }$+N$_{2}$ A) Carbanion. B) Carbene. C) Free radical. D) Carbocation. Show Answer Correct Answer: C) Free radical. 2. Nucleophiles donate its pair of electrons to electron deficient species and hence behave as: A) Lewis bases. B) Lewis acids. C) Bronsted acids. D) None of the above. Show Answer Correct Answer: A) Lewis bases. 3. Which set of conditions would be most suitable to convert ethene to ethanol? A) 200$^\circ$C, Ni catalyst. B) 300$^\circ$C, 65 atm, H$_{3}$PO$_{4}$ catalyst. C) 600$^\circ$C, Al$_{2}$O$_{3}$ catalyst. D) Room temperature, no catalyst. Show Answer Correct Answer: B) 300$^\circ$C, 65 atm, H$_{3}$PO$_{4}$ catalyst. 4. General formula for alkane A) C$_{n}$H$_{2n+2}$. B) C$_{n}$H$_{2n}$. C) C$_{n}$H$_{2n-2}$. D) CH. Show Answer Correct Answer: A) C$_{n}$H$_{2n+2}$. 5. Turns H$^{+}$/MnO$_{4}$$^{-}$ from purple to colourless (no heat needed) A) Alkane. B) Alcohol. C) Amine. D) Alkene. Show Answer Correct Answer: D) Alkene. 6. For a molecule with two like chiral carbon atoms, the number of optically inactive form is? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: A) 1. 7. Which of the following alkyl halides would undergo S$_{N}$2 reaction most rapidly? A) CH$_{3}$CH$_{2}$-Br. B) CH$_{3}$CH$_{2}$-Cl. C) CH$_{3}$CH$_{2}$-I. D) CH$_{3}$CH$_{2}$-F. E) They react at the same rate. Show Answer Correct Answer: C) CH$_{3}$CH$_{2}$-I. 8. Which hydrocarbon is saturated? A) C$_{2}$H$_{2}$. B) C$_{3}$H$_{4}$. C) C$_{4}$H$_{6}$. D) C$_{4}$H$_{10}$. Show Answer Correct Answer: D) C$_{4}$H$_{10}$. 9. Nitrogen can make up ..... bonds. A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: C) 3. 10. Which of the following type of alcohol is obtained from Hydroboration method? A) Primary. B) Secondary. C) Tertiary. D) Quartarnary. Show Answer Correct Answer: A) Primary. 11. Which is propyl propanoate? A) CH$_{3}$CH$_{2}$CH$_{2}$OOCCH$_{2}$CH$_{3}$. B) CH$_{3}$CH$_{2}$CH$_{2}$COOCH$_{2}$CH$_{3}$. C) CH$_{3}$CH$_{2}$CH$_{2}$COCH$_{2}$CH$_{3}$. D) CH$_{3}$CH$_{2}$CH$_{2}$OCH$_{2}$CH$_{2}$CH$_{3}$. Show Answer Correct Answer: A) CH$_{3}$CH$_{2}$CH$_{2}$OOCCH$_{2}$CH$_{3}$. 12. The suffix used for ester A) Ol. B) Al. C) Oxy. D) Ate. Show Answer Correct Answer: D) Ate. 13. A solution of Acetone and carbon disulphide shows ..... deviation A) Positive. B) Negative. C) Neither positive nor negative. D) None of the above. Show Answer Correct Answer: A) Positive. 14. Alcohols can be oxidised by ..... A) Combustion. B) Freezing. C) Decomposition. D) Addition. Show Answer Correct Answer: A) Combustion. 15. Fuel for lorries A) Fuel oil. B) Petroleum. C) Diesel. D) Bitumen. Show Answer Correct Answer: C) Diesel. 16. True or False:Polymers can only contain one type of monomer. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 17. WHICH OF THE FOLLOWING IS MOST ACIDIC? A) ALKANE. B) ALKENE. C) ALKYNE. D) NONE. Show Answer Correct Answer: C) ALKYNE. 18. The MP and BP increases as the molecular structure increases A) Hydrocarbons. B) Ethers. C) Ketones. D) None of the above. Show Answer Correct Answer: A) Hydrocarbons. 19. Hydrocarbons burning is an example of what type of chemical reaction? A) Neutralisation. B) Endothermic. C) Addition. D) Exothermic. Show Answer Correct Answer: D) Exothermic. 20. What is the type of hybridization of each carbon in CH3CN? A) Sp$^{3}$, sp$^{2}$. B) Sp$^{2}$, sp. C) Sp$^{3}$, sp. D) None of the above. Show Answer Correct Answer: C) Sp$^{3}$, sp. 21. A fraction of crude oil is made up of: A) Hydrocarbons of similar chain lengths. B) Numbers. C) Large hydrocarbons. D) Alkenes only. Show Answer Correct Answer: A) Hydrocarbons of similar chain lengths. 22. ..... differ in the length of their straight chain or branches. A) Functional group isomers. B) Chain isomers. C) Positional isomers. D) Diastereomers. Show Answer Correct Answer: B) Chain isomers. 23. Which of the following is a characteristic feature of an alkane? A) Presence of a carbon-carbon double bond. B) Presence of a carbon-carbon triple bond. C) Saturated hydrocarbons with single bonds. D) Aromatic ring structure. Show Answer Correct Answer: C) Saturated hydrocarbons with single bonds. 24. Reagent used to convert haloalkane to Propan-2-ol A) Conc KOH. B) Aqueous KOH. C) Acidified water. D) None of the above. Show Answer Correct Answer: B) Aqueous KOH. 25. How many structural isomers are there with the molecular formula C$_{3}$H$_{6}$BrCl? A) 4. B) 5. C) 6. D) 7. 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