This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Glycerine can be purified by A) Steam distillation. B) Simple distillation. C) Fractional distillation. D) Vaccum distillation. Show Answer Correct Answer: D) Vaccum distillation. 2. The suffix used for alkenes A) Ane. B) Ene. C) Yne. D) All. Show Answer Correct Answer: B) Ene. 3. Hydrocarbons that contain at least one carbon-to-carbon triple bond. A) Alkanes. B) Alkenes. C) Alkynes. D) None of the above. Show Answer Correct Answer: C) Alkynes. 4. Which of the following is a saturated hydrocarbon? A) Ethene (C2H4). B) Ethyne (C2H2). C) Propane (C3H8). D) Benzene (C6H6). Show Answer Correct Answer: C) Propane (C3H8). 5. The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC system of nomenclatre is A) -COOH, -SO$_{3}$H, -CONH$_{2}$, -CHO. B) -SO$_{3}$H, -COOH, -CONH$_{2}$, -CHO. C) -CHO, -COOH, -SO$_{3}$H, -CONH$_{2}$. D) -CONH$_{2}$, -CHO, -SO3H, -COOH. Show Answer Correct Answer: A) -COOH, -SO$_{3}$H, -CONH$_{2}$, -CHO. 6. Properties depend on number of solute particles A) Physical properties. B) Colligative properties. C) Chemical properties. D) None of the above. Show Answer Correct Answer: B) Colligative properties. 7. What are the required reagents / conditions for the reaction below?CH$_{3}$CH$_{2}$OH $\rightarrow$ C$_{2}$H$_{4}$ A) Concentrated H$_{2}$SO$_{4}$ / high temperature. B) H$_{2}$ / Ni catalyst / 150$^{o}$C. C) Br$_{2}$ / UV light. D) H$_{2}$O / H$_{3}$PO$_{4}$ catalyst / high pressure. Show Answer Correct Answer: A) Concentrated H$_{2}$SO$_{4}$ / high temperature. 8. How many isomer of pentane, C$_{5}$H$_{12}$? A) 2. B) 3. C) 4. D) 5. Show Answer Correct Answer: B) 3. 9. Which type(s) of formula should NOT be used when describing mechanisms using curly arrows? A) Displayed formulae. B) Structural formulae. C) Skeletal formulae. D) None of the above. Show Answer Correct Answer: B) Structural formulae. 10. Elements cannot be broken down. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 11. Benzene is NOT: A) Made up of 6 carbons. B) A ring structure. C) Made with alternating double bonds. D) Safe to drink. Show Answer Correct Answer: D) Safe to drink. 12. The molecular formula for benzene is A) CH. B) C$_{2}$H$_{2}$. C) C$_{3}$H$_{3}$. D) C$_{6}$H$_{6}$. Show Answer Correct Answer: D) C$_{6}$H$_{6}$. 13. Number of alpha hydrogen atoms in 2-butene molecule is ..... A) 2. B) 6. C) 4. D) 3. Show Answer Correct Answer: B) 6. 14. What is the name of the triple bonded compounds which are unsaturated? A) Alkanes. B) Alkenes. C) Alkynes. D) Alkones. Show Answer Correct Answer: C) Alkynes. 15. Hydrocarbon which is a greenhouse gas is: A) Butane. B) Ethylene. C) Ethane. D) Methane. Show Answer Correct Answer: D) Methane. 16. The most viscous fraction in the fractional distillation of crude oil A) Kerosene. B) Fuel oil. C) Bitumen. D) Refinery gas. Show Answer Correct Answer: C) Bitumen. 17. Which Hydrocarbon is More Flammable? 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. 18. Shorter hydrocarbons have: A) Higher boiling points. B) Lower boiling points. C) All the above. D) None of the above. Show Answer Correct Answer: B) Lower boiling points. 19. Water is the best known ..... A) Solution. B) Solvent. C) Mixture. D) None of the above. Show Answer Correct Answer: B) Solvent. 20. Reagent needed to change an alcohol to an alkene A) Concentrated H$_{2}$SO$_{4}$. B) KOH (alc). C) Water/dilute H$_{2}$SO$_{4}$. D) Cr$_{2}$O$_{7}$$^{2-}$/H$^{+}$. Show Answer Correct Answer: A) Concentrated H$_{2}$SO$_{4}$. 21. Compounds having the general formula CnH2n include A) Benzene. B) Cyclohexane. C) Hexane. D) Hexine. Show Answer Correct Answer: B) Cyclohexane. 22. What are the required reagents / conditions for the reaction below?C$_{2}$H$_{4}$ $\rightarrow$ C$_{2}$H$_{6}$ A) Aqueous NaOH / warm. B) H$_{2}$ / Ni catalyst / 150$^{o}$C. C) H$_{2}$O / H$_{3}$PO$_{4}$ catalyst / high pressure. D) H$_{2}$ / H$_{3}$PO$_{4}$ catalyst / high pressure. Show Answer Correct Answer: B) H$_{2}$ / Ni catalyst / 150$^{o}$C. 23. Which is true regarding the isoelectric point in amino acids: A) The pH at which amino acid exist as cation. B) The pH at which it exist as zwitter ion. C) The pH at which it moves towards +ve plate of electric field. D) All are correct. Show Answer Correct Answer: B) The pH at which it exist as zwitter ion. 24. Which statement define the Lewis acid correctly A) Any species that can donate proton. B) Substance that donate an electron pair. C) Substance that accept an electron pair. D) Any species that can accept proton. Show Answer Correct Answer: C) Substance that accept an electron pair. 25. How many bonds can be formed by carbon? A) One. B) Two. C) Three. D) Four. Show Answer Correct Answer: D) Four. 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