This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Chemistry Part Ii > Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 12 Organic Chemistry Basic Principles And Techniques Quiz 8 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following sets of groups contains only electrophiles? A) F$^{-}$, OH$^{-}$, NH$_{3}$, SO$_{3}$. B) NH$_{3}$, BF$_{3}$, AlCl$_{3}$, H$_{2}$O. C) NO$^{+}$$_{2, }$AlCl$_{3}$, SO$_{3}$, CH$_{3}$C=O. D) NH$^{-}$$_{2, }$NO$^{+}$$_{2}$, H$_{2}$O, NH$_{3}$. Show Answer Correct Answer: C) NO$^{+}$$_{2, }$AlCl$_{3}$, SO$_{3}$, CH$_{3}$C=O. 2. What is the process called when a protein loses its shape and function? A) Reduction. B) Aggregation. C) Denaturation. D) Folding. Show Answer Correct Answer: C) Denaturation. 3. Which of the following is an example of a compound? A) O. B) H. C) NaCl. D) None of the above. Show Answer Correct Answer: C) NaCl. 4. Type of reaction (unbalanced).CH$_{3}$CH$_{2}$OH $\rightarrow$ CH$_{3}$COOH A) Oxidation. B) Substitution. C) Addition. D) Elimination. Show Answer Correct Answer: A) Oxidation. 5. 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. 6. If yo find in a carbon chain a '' = '' you know that this is a ..... A) We never write an "equal" in a carbon chain. B) Alkyne / Alquino. C) Alkane / Alcano. D) Alkene / Alquene. Show Answer Correct Answer: D) Alkene / Alquene. 7. 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. 8. 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. 9. 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. 10. 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. 11. Which is not a possible product when propane, C$_{3}$H$_{8}$, reacts with chlorine in sunlight? A) Cl$_{2}$. B) C$_{6}$H$_{14}$. C) H$_{2}$. D) C$_{3}$H$_{7}$Cl. Show Answer Correct Answer: C) H$_{2}$. 12. The bond angle about a carbon atom involved in a triple bond is ..... A) 120$^\circ$. B) 109.5$^\circ$. C) 105$^\circ$. D) 180$^\circ$. Show Answer Correct Answer: D) 180$^\circ$. 13. A hydrolysis reaction means: A) To add water to a compound. B) To remove water from a compound. C) To add hydrolyte to a compound. D) To remove hydrolyte from a compound. Show Answer Correct Answer: A) To add water to a compound. 14. 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. 15. 0 charge, reside in the nucleus A) Neutron. B) Proton. C) Neutrino. D) Electron. Show Answer Correct Answer: A) Neutron. 16. What is the IUPAC name for CH3CH2CH2OH? A) Propanol. B) Ethanol. C) Butanol. D) Methanol. Show Answer Correct Answer: A) Propanol. 17. What is the structure of methyl alcohol? A) H$_{2}$C=CH$_{2}$. B) CH$_{3}$OH. C) CH$_{3}$CH$_{2}$CH$_{2}$CH$_{3}$. D) CHCl$_{3}$. Show Answer Correct Answer: B) CH$_{3}$OH. 18. Type of reaction.CH$_{3}$COOH + NaHCO$_{3}$ $\rightarrow$CH$_{3}$COO$^{-}$Na$^{+}$ + H$_{2}$O + CO$_{2}$ A) Substitution. B) Acid-base. C) Oxidation. D) Elimination. Show Answer Correct Answer: B) Acid-base. 19. In which series of organic compounds are only alkanes: A) CH4, C2H4, C4H6. B) C10H20, C8H16, C3H6;. C) C2H6, C3H8, C4H10;. D) C2H2, C4H8, C6H6;. Show Answer Correct Answer: C) C2H6, C3H8, C4H10;. 20. On heating phenol with aniline in presence of anhydrous ZnCl2 will give A) Diazomethane. B) Phenyl hydrazine. C) Benzene diazonium chloride. D) Diphenyl amine. Show Answer Correct Answer: D) Diphenyl amine. 21. The branch of chemistry that involves the study of substances other than those classified as organic. A) Biochemistry. B) Inorganic Chemistry. C) Organic Chemistry. D) Analytical Chemistry. Show Answer Correct Answer: B) Inorganic Chemistry. 22. What is the process called when two monomers combine to form a polymer? A) Condensation. B) Polymerization. C) Monomerization. D) Polymer bonding. Show Answer Correct Answer: B) Polymerization. 23. The masses of carbon, hydrogen and oxygen in an organic compound are in the ration 6:1:8 respectively. Which of the following pairs of formulae correspond to above information? A) CH$_{2}$O and C$_{3}$H$_{6}$O. B) C$_{3}$H$_{6}$O$_{3}$ and HCHO. C) CH$_{2}$O and CH$_{3}$CHO. D) C$_{3}$H$_{6}$O and C$_{2}$H$_{6}$O$_{2}$. Show Answer Correct Answer: B) C$_{3}$H$_{6}$O$_{3}$ and HCHO. 24. Stability of alkyl carbocations can be explained by A) Both inductive and hyperconjugation effect. B) Inductive effect only. C) Electrometric effect only. D) Hyperconjugation only. Show Answer Correct Answer: A) Both inductive and hyperconjugation effect. 25. Homolytic fission results in A) Carbocations. B) Carbanions. C) Free Radicals. D) None of the above. Show Answer Correct Answer: C) Free Radicals. 26. Formation of a single product from two reactant molecules is known as A) Substitution reaction. B) Elimination reaction. C) Addition reaction. D) Oxidation reaction. Show Answer Correct Answer: C) Addition reaction. 27. Which sample has hydrogen bonding? A) HI. B) H$_{2}$S. C) CH$_{4}$. D) NH$_{3}$. Show Answer Correct Answer: D) NH$_{3}$. 28. Separation of two substances by crystallisation depends upon their differences in A) Densities. B) Melting points. C) Solubility. D) Boiling points. Show Answer Correct Answer: C) Solubility. 29. Heterolysis of carbon-chlorine bond produces A) One cation and one anion. B) Two carbocations. C) Two carbanions. D) Two free radicals. Show Answer Correct Answer: A) One cation and one anion. 30. The suffix used for alkanes A) Ane. B) Ene. C) Yne. D) All. Show Answer Correct Answer: A) Ane. 31. Esterification is an example of a ..... A) An addition reaction. B) A condensation reaction. C) An evaporation reaction. D) A subtraction reaction. Show Answer Correct Answer: B) A condensation reaction. 32. Which of the following is not grignard reagent? A) RMgOH. B) RMgBr. C) RMgI. D) RMgCl. Show Answer Correct Answer: A) RMgOH. 33. Which of the following definitions of an asymmeric reaction is the most accurate? A) A reaction that involves a chiral reagent. B) A reaction which creates a new chiral centre with selectivity for one enantiomer/diasatereoisomer over another. C) A reaction that is carried out on an asymmetric starting material. D) A reaction that creates a new chiral centre in the product. Show Answer Correct Answer: B) A reaction which creates a new chiral centre with selectivity for one enantiomer/diasatereoisomer over another. 34. Hydrogen atoms are included when counting the number of atoms in the parent chain of a molecule. A) True. B) False. C) I have no idea. D) None of the above. Show Answer Correct Answer: B) False. 35. Holds a water molecule together A) Monosaccharide. B) Glycongen. C) Glucose. D) Hydrogen bond. Show Answer Correct Answer: D) Hydrogen bond. 36. In Duma's method 0.52g of an organic compound on combustio gave 68.6ml at 27 and 756 mm pressure. What is the percentage of nitrogen in the compound? A) 16.23%. B) 12.22%. C) 14.93%. D) 15.84%. Show Answer Correct Answer: C) 14.93%. 37. What is the IUPAC name for the compound with the molecular formula $C_4H_10O$ A) Butanol. B) Butanal. C) Butanoic Acid. D) Butanone. Show Answer Correct Answer: A) Butanol. 38. Which of the following pairs are isomers? A) Butane and isobutane. B) Methane and ethane. C) Ethene and ethyne. D) Propane and propene. Show Answer Correct Answer: A) Butane and isobutane. 39. What is the general formula of the alkyne series? A) C$_{n}$H$_{n}$. B) C$_{n}$H$_{2n-2}$. C) C$_{n}$H$_{2n+2}$. D) C$_{n}$H$_{2n}$. Show Answer Correct Answer: B) C$_{n}$H$_{2n-2}$. 40. Which compound is not an alkane, CnH2n+2? A) (CH3)3CH. B) (CH3)2CHCH3. C) CH3CHCHCH3. D) CH3CH2CH2CH3. Show Answer Correct Answer: C) CH3CHCHCH3. 41. He is regarded as the Father of Chemical Theory in recognition of the importance of his Atomic Theory to the development of chemical knowledge. A) Neils Bohr. B) JJ Thompson. C) John Dalton. D) Ernest Rutherford. Show Answer Correct Answer: C) John Dalton. 42. Which one is NOT a biogenic element? A) Oxygen. B) Sodium. C) Sulphur. D) Nitrogen. Show Answer Correct Answer: B) Sodium. 43. Who was Worther? A) German chemist. B) Dutch chemist. C) English doctor. D) French physicist. Show Answer Correct Answer: A) German chemist. 44. An organic weak acid is: A) Hydrochloric acid. B) Formic acid. C) Sulphuric acid. D) Nitric acid. Show Answer Correct Answer: B) Formic acid. 45. To which group of organic reactions does hydrogenation belong? A) Substitution. B) Polymerization. C) Condensation. D) Addition. Show Answer Correct Answer: D) Addition. 46. Lassaigne's test for the detection of nitrogen fails in A) C$_{6}$H$_{5}$NHNH$_{2}$.HCl. B) NH$_{2}$CONHNH$_{2}$.HCl. C) NH$_{2}$CONH$_{2}$. D) NH$_{2}$.NH$_{2}$.HCl. Show Answer Correct Answer: D) NH$_{2}$.NH$_{2}$.HCl. 47. In carius method of estimation of halogen, 0.15g of an organic compound gave 0.12g of AgBr. What is the percentage of bromine in the compound? A) 68.08%. B) 50%. C) 42.1%. D) 34.04%. Show Answer Correct Answer: D) 34.04%. 48. PROPANAL contains which of the following functional group? A) Aldehyde. B) Halo group. C) Ketone. D) Alcohol. Show Answer Correct Answer: A) Aldehyde. 49. Carbon attached to three alkyl groups is known as ..... A) Secondary carbon. B) Primary carbon. C) Quartenary carbon. D) Tertiary carbon. Show Answer Correct Answer: D) Tertiary carbon. 50. FORMULA FOR 4 MEMBERED ALKYNE A) C4H10. B) C4H4. C) C4H6. D) C4H8. Show Answer Correct Answer: C) C4H6. 51. When a carbon has a negative charge A) Carbocation. B) Carbanion. C) All the above. D) None of the above. Show Answer Correct Answer: B) Carbanion. 52. The substance which can be used as adsorbent in column chromatography is A) NaCl. B) Na$_{2}$SO$_{4}$. C) Al$_{2}$O$_{3}$. D) Na$_{2}$O. Show Answer Correct Answer: C) Al$_{2}$O$_{3}$. 53. Polar compounds generally mix well with other polar compounds; non-polar compounds generally mix well with other non-polar compounds A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 54. Those substances can be separated by steam distillation are A) Steam volatile and soluble in water. B) In liquid form in steam and solid forms in water. C) Steam volatile and insoluble in water. D) Steam volatile and sparingly soluble in water. Show Answer Correct Answer: C) Steam volatile and insoluble in water. 55. The carbon bearing the unpaired electron in a simple alkyl free radical is ..... hybridized A) Sp3. B) Sp2. C) Sp. D) Sp2d. Show Answer Correct Answer: B) Sp2. 56. Large molecules made up of small monomers are called A) Peptones. B) Peptides. C) Monomers. D) Polymers. Show Answer Correct Answer: D) Polymers. 57. Full form of IUPAC A) Indian union of partial and chemistry. B) International union of pure and chemistry. C) International union of pure and applied chemistry. D) None of the above. Show Answer Correct Answer: C) International union of pure and applied chemistry. 58. These elements are the ones that are in all?? A) Dead organisms. B) People and plants. C) Living organisms. D) Cats. Show Answer Correct Answer: C) Living organisms. 59. What is order of SN1 reaction? A) 3rd order. B) Zero order. C) 2nd order. D) 1st order. Show Answer Correct Answer: D) 1st order. 60. Which of the following is a characteristic of aromatic compounds? A) They are always saturated. B) They are always aliphatic. C) They have a ring structure with alternating double bonds. D) They contain only single bonds. Show Answer Correct Answer: C) They have a ring structure with alternating double bonds. ← PreviousNext →Related QuizzesScience QuizzesClass 11 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books