This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 18 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Why is carbon able form long chains? A) Because carbon is an unstable non-metallic element. B) Carbon can form 4 covalent bond. C) Carbon is the most abundant element on the surface of our planet. D) Every organic compound contains carbon. Show Answer Correct Answer: B) Carbon can form 4 covalent bond. 2. What functional group is present in an alcohol? A) -OH. B) -COOH. C) -NH2. D) -SH. Show Answer Correct Answer: A) -OH. 3. Organic compound that fight diseases? A) Carbohydrates. B) Protein. C) Lipids. D) Nucleic acid. Show Answer Correct Answer: B) Protein. 4. Which of the following is aldehyde A) CH$_{3}$CHO. B) CH$_{3}$CH$_{2}$OH. C) CH$_{3}$OCH$_{3}$. D) CH$_{3}$COOH. Show Answer Correct Answer: A) CH$_{3}$CHO. 5. What functional group is-OH A) Hydroxyl. B) Carboxyl. C) Amino. D) Carbonyl Ketone. Show Answer Correct Answer: A) Hydroxyl. 6. If a compound has 13 covalent bonds, then how many electrons will it be sharing? A) 13. B) 26. C) 39. D) 16. Show Answer Correct Answer: B) 26. 7. ..... groups are atoms, groups of atoms or bond that determine the characteristic of an organic compound. A) Aliphatic. B) Aromatic. C) Functional. D) Hydrocarbon. Show Answer Correct Answer: C) Functional. 8. Which reaction is reversible? A) Cu + ZnSO4 $\rightarrow$ CuSO4 + Zn. B) CuO + H2SO4 $\rightarrow$ CuSO4 + H2O. C) CuO + H2 $\rightarrow$ Cu + H2O. D) CuSO4.5H2O $\rightarrow$ CuSO4 + 5H2O. Show Answer Correct Answer: D) CuSO4.5H2O $\rightarrow$ CuSO4 + 5H2O. 9. What are the four kind of orbitals? A) S, P, D, F. B) S, P, G, F. C) S, D, P, E. D) S, P, D, K. Show Answer Correct Answer: A) S, P, D, F. 10. Oxidation of o-xylene will give A) Phthalic acid. B) Citric acid. C) Oxalic acid. D) Benzoic acid. Show Answer Correct Answer: A) Phthalic acid. 11. Which of the following sets of groups contains only electrophiles? A) F$^{-}$, OH$^{-}$, NH$_{3}$, SO$_{3}$. B) NO$^{+}$$_{2, }$AlCl$_{3}$, SO$_{3}$, CH$_{3}$C=O. C) NH$_{3}$, BF$_{3}$, AlCl$_{3}$, H$_{2}$O. D) NH$^{-}$$_{2, }$NO$^{+}$$_{2}$, H$_{2}$O, NH$_{3}$. Show Answer Correct Answer: B) NO$^{+}$$_{2, }$AlCl$_{3}$, SO$_{3}$, CH$_{3}$C=O. 12. What is the process called when a protein loses its shape and function? A) Reduction. B) Denaturation. C) Folding. D) Aggregation. Show Answer Correct Answer: B) Denaturation. 13. Which of the following is an example of a compound? A) O. B) H. C) NaCl. D) None of the above. Show Answer Correct Answer: C) NaCl. 14. Type of reaction (unbalanced).CH$_{3}$CH$_{2}$OH $\rightarrow$ CH$_{3}$COOH A) Oxidation. B) Elimination. C) Addition. D) Substitution. Show Answer Correct Answer: A) Oxidation. 15. Hybridization of carbon is A) The s and p orbitals joined to create spaces for bonding. B) The s, p and d orbitals joined to create spaces for bonding. C) The s and p orbitals. D) The s, p and d orbitals. Show Answer Correct Answer: A) The s and p orbitals joined to create spaces for bonding. 16. If yo find in a carbon chain a '' = '' you know that this is a ..... A) Alkane / Alcano. B) Alkene / Alquene. C) Alkyne / Alquino. D) We never write an "equal" in a carbon chain. Show Answer Correct Answer: B) Alkene / Alquene. 17. What will happen when bromine is added to ethene? (as long as the ethene is present in excess) A) Reddish brown colour of bromine decolourised. B) Reddish brown colour of bromine remain unchanged. C) All the above. D) None of the above. Show Answer Correct Answer: A) Reddish brown colour of bromine decolourised. 18. The functional group present in acetic acid is: A) Ketonic, > C = O. B) Hydroxyl, -OH. C) Aldehydic, -CHO. D) Carboxyl, -COOH. Show Answer Correct Answer: D) Carboxyl, -COOH. 19. Which type of polymerisation uses only one monomer? A) Addition polymerisation. B) Condensation polymerisation. C) All the above. D) None of the above. Show Answer Correct Answer: A) Addition polymerisation. 20. The names of two structural isomers of C$_{5}$H$_{12}$ are A) 3-methylbutane and 2, 2-dimethylpropane. B) Cyclopentane and 2-methylbutane. C) 2, 2-dimethylpropane and pentene. D) 2-methylbutane and 2, 2-dimethylpropane. Show Answer Correct Answer: D) 2-methylbutane and 2, 2-dimethylpropane. 21. Which is the best description of fractional distillation? A) Breaking down longer hydrocarbon chains into smaller ones that are more useful. B) Separating the hydrocarbons in crude oil into fractions, with each fraction containing molecules with a similar number of carbon atoms. C) Pumping crude oil out from under the sea. D) Ensuring resources are used to meet the needs of current generations without compromising the needs of future generations. Show Answer Correct Answer: B) Separating the hydrocarbons in crude oil into fractions, with each fraction containing molecules with a similar number of carbon atoms. 22. Which is not a possible product when propane, C$_{3}$H$_{8}$, reacts with chlorine in sunlight? A) H$_{2}$. B) C$_{6}$H$_{14}$. C) C$_{3}$H$_{7}$Cl. D) Cl$_{2}$. Show Answer Correct Answer: A) H$_{2}$. 23. The bond angle about a carbon atom involved in a triple bond is ..... A) 105$^\circ$. B) 109.5$^\circ$. C) 120$^\circ$. D) 180$^\circ$. Show Answer Correct Answer: D) 180$^\circ$. 24. A hydrolysis reaction means: A) To add hydrolyte to a compound. B) To add water to a compound. C) To remove hydrolyte from a compound. D) To remove water from a compound. Show Answer Correct Answer: B) To add water to a compound. 25. Distillation under reduced pressure is generally used to purify those liquids which A) Have high boiling points and which decompose below their boiling points. B) Have very low boiling points. C) Have a larger difference in their boiling points. D) Are volatile. Show Answer Correct Answer: A) Have high boiling points and which decompose below their boiling points. ← 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