This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 24 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which is an unsaturated compound A) CH2=CH(Cl).CHO. B) CH3. CHOH.CH3. C) CHO.CH2.CH(CH3)2. D) None of the above. Show Answer Correct Answer: A) CH2=CH(Cl).CHO. 2. What is the atomic number of Nitrogen? A) 1. B) 3. C) 5. D) 7. Show Answer Correct Answer: D) 7. 3. Optical activity is the property in which a substance is unable to rotate the plane of polarisation A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 4. Select the correct name of the following formula. C$_{6}$H$_{11}$NH$_{2}$ A) Hexanamine. B) Hexene. C) Hexenol. D) Hexenamine. Show Answer Correct Answer: D) Hexenamine. 5. Acid amide can be converted to amine with one carbon less by A) Simonini reaction. B) Hoffman bromamide reaction. C) Iodoform reaction. D) Swartz reaction. Show Answer Correct Answer: B) Hoffman bromamide reaction. 6. How was crude oil formed? A) From the remains of an ancient biomass, consisting mainly of plankton, that was buried in mud. B) Mostly from the remains of dinosaur bones. C) By fractional distillation. D) By cracking. Show Answer Correct Answer: A) From the remains of an ancient biomass, consisting mainly of plankton, that was buried in mud. 7. Which type of formulas represents only combination ratio of the constituent atoms? A) Structural Formula. B) Empirical Formula. C) Molecular Formula. D) Condense Formula. Show Answer Correct Answer: B) Empirical Formula. 8. The effect of temperature on the rate of the reaction between marble chips and hydrochloric acidcan be investigated by measuring the production of carbon dioxide. Which item of equipment is not required for the investigation? A) Condenser. B) Gas syringe. C) Stopclock. D) Thermometer. Show Answer Correct Answer: A) Condenser. 9. Which analysis is needed to determine type of elements present in given sample? A) Quantitative Analysis. B) Simple Analysis. C) Qualitatif Analysis. D) Stoichiometric Analysis. Show Answer Correct Answer: C) Qualitatif Analysis. 10. Which one of the following is an example for reducing sugar A) Sucrose. B) Glucose. C) Starch. D) Cellulose. Show Answer Correct Answer: B) Glucose. 11. Which is the organic compound? A) Silane, SiH$_{4}$. B) Urea, CH$_{4}$N$_{2}$O. C) Ammonium sulfide, (NH$_{4}$)$_{2}$S. D) Sodium chloride, NaCl. Show Answer Correct Answer: B) Urea, CH$_{4}$N$_{2}$O. 12. Match the name of the straight-chain alkane with the number of atoms it contains:Nonane A) 3. B) 4. C) 7. D) 9. Show Answer Correct Answer: D) 9. 13. Organic molecules contain (at least) the elements A) Nitrogen and Oxygen. B) Phosphorous and Sulfur. C) Carbon and Hydrogen. D) Oxygen and Hydrogen. Show Answer Correct Answer: C) Carbon and Hydrogen. 14. Which of the following represents the given sequence of hybridization of carbon atoms from left to right sp$^{2}$, sp$^{2}$, sp, sp? A) HCC-CH=CH$_{2}$. B) H$_{3}$C-CH=CH-CH$_{3}$. C) A) H$_{2}$C=CH-CCH. D) H$_{2}$C=CH-CH=CH$_{2}$. Show Answer Correct Answer: C) A) H$_{2}$C=CH-CCH. 15. Choose the more relevant answer in regards to the environmental impact:The combustion of any type of hydrocarbon: A) Causes carbon monoxide increasing the greenhouse gases in the atmosphere. B) Is relevant for the economical development of petroleum producer countries,. C) Is used as the main reaction for energetic purposes. D) None of the above. Show Answer Correct Answer: A) Causes carbon monoxide increasing the greenhouse gases in the atmosphere. 16. What are the required reagents / conditions for the reaction below?CH$_{3}$COCl $\rightarrow$ CH$_{3}$COOCH$_{2}$CH$_{3}$ A) H$_{2}$O. B) CH$_{3}$COOH / concentrated H$_{2}$SO$_{4}$ / warm. C) NaCN / aqueous H$_{2}$SO$_{4}$. D) CH$_{3}$CH$_{2}$OH. Show Answer Correct Answer: D) CH$_{3}$CH$_{2}$OH. 17. The most reactive nucleophile among the following is A) CH3O$^{-}$. B) C6H5O$^{-}$. C) (CH3)2CHO$^{-}$. D) (CH3)3CO$^{-}$. Show Answer Correct Answer: A) CH3O$^{-}$. 18. How many carbons does butane have? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 19. Which could form an addition polymer? A) H$_{2}$NCH$_{2}$CHCHCH$_{2}$NH$_{2}$. B) H$_{2}$N(CH$_{2}$)$_{6}$CO$_{2}$H. C) HO(CH$_{2}$)$_{2}$CO$_{2}$H. D) H$_{2}$N(CH$_{2}$)$_{6}$NH$_{2}$. Show Answer Correct Answer: A) H$_{2}$NCH$_{2}$CHCHCH$_{2}$NH$_{2}$. 20. To convert propan-2-ol to propene, reagent used is A) Concentrated sulfuric acid. B) Dilute sulfuric acid. C) Acidified permanganate. D) None of the above. Show Answer Correct Answer: A) Concentrated sulfuric acid. 21. Carbon has ..... electrons-the same number of bonds it can make. A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: C) 3. 22. Carbon compounds can form: A) Branched compounds. B) Straight compounds. C) Ring structures. D) All of the above. Show Answer Correct Answer: D) All of the above. 23. What is the pH level of a base? A) 7.1-14. B) 0-6.9. C) 14-21. D) 7. Show Answer Correct Answer: A) 7.1-14. 24. It carries the genetic information for the Cells A) DNA. B) RNA. C) ATP. D) NADPH. Show Answer Correct Answer: A) DNA. 25. How many carbon atoms are in ethane? A) 1. B) 2. C) 3. D) 4. 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