The study of hydrocarbons and their derivatives is known as organic chemistry. They are necessary to sustain life on earth. We depend on organic substances for food, clothing, medications, etc. Organic molecules support our existence. Complex organic compounds nourish and regulate our bodies. Therefore, organic chemistry is essential for our everyday lives.
Download Class 11 Chemistry Worksheet on Chapter 12 Organic Chemistry – Some Basic Principles & Techniques Set 5 PDF.
CBSE Class 11 Chemistry Chapter 12 Organic Chemistry – Some Basic Principles & Techniques Worksheet – Set 5
Q1. Which of the following is an example of an elimination reaction?
(a) Chlorination of methane
(b) Dehydration of an alcohol
(c) Nitration of benzene
(d) All of the above
Q2. Orbital interactions between sigma bonds of a substituent group and the neighbouring pi orbitals are known as _______.
(a) Hyperconjugation
(b) Inductive effect
(c) Steric effect
(d) None of the above
Q3. Which of the following principles is involved in paper chromatography?
(a) Adsorption
(b) Partition
(c) Solubility
(d) All of the above
Q4. Which of the following methods is used to purify glycerol?
(a) Vacuum distillation
(b) Steam distillation
(c) Fractional distillation
(d) None of the above
Q5. Which of the following methods is used to purify a mixture of acetone and methanol?
(a) Vacuum distillation
(b) Steam distillation
(c) Fractional distillation
(d) None of the above
Q6. Write the IUPAC and common names of the first three members of the alkyne series.
Q7. What do you understand by structural isomers?
Q8. Name a test used in distinguishing aldehydes from ketones.
Q9. What do you understand by homologous series?
Q10. State any five characteristics of homologous series.
Q11. What is Kjeldahl’s method of nitrogen estimation?
Q12. Name a method used to separate a mixture of benzoic acid and naphthalene.
Q13. Name a method used to separate a mixture of ortho nitrophenol and para nitrophenol.
Q14. What is the primary difference between an electrophile and a nucleophile?
Q15. Calculate the sigma and pi bonds in pent-1-ene-4-yne.
Q16. What is the hybridisation of carbon in
(a) Methyl chloride
(b) Ethyne (CH ≡ CH)
(c) CH3 – CH = CH – CN
Q17. Are steam distillation and distillation under reduced pressure the same?
Q18. What are inductive and resonance effects? How do these two effects differ?
Q19. How will you detect nitrogen and halogen in an organic compound?
Q20. Find the bromine percentage in a compound if 0.15 g of an organic compound yields 0.12 g of silver bromide via the Carius method.
Download the PDF to access answers to the Chemistry Worksheet for Class 11 Chemistry Chapter 12 Organic Chemistry – Some Basic Principles & Techniques Set – 5.
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