Organic chemistry is the chemistry branch that studies carbon-containing compounds, especially hydrocarbons and their derivatives. It primarily deals with organic compounds’ structure, properties and reactions.
Organic chemistry plays a critical role in our everyday lives. It is used to manufacture medicines, powder, soaps, perfumes and shampoo. Essential fuels like LPG, CNG and natural gas are also organic compounds.
Download Class 11 Chemistry Worksheet on Chapter 12 Organic Chemistry – Some Basic Principles & Techniques Set 4 PDF.
CBSE Class 11 Chemistry Chapter 12 Organic Chemistry – Some Basic Principles & Techniques Worksheet – Set 4
Q1. How many sigma and pi bonds are there in cyanogen?
(a) Three, four
(b) Two, Three
(c) One, Two
(d) None of the above
Q2. Which of the following elements cannot be detected by Lassaigne’s test?
(a) Nitrogen
(b) Sulphur
(c) Chlorine
(d) None of the above
Q3. Which of the following contains a carbonyl functional group?
(a) Aldehyde
(b) Ketone
(c) Carboxylic acid
(d) All of the above
Q4. What is the general formula of alkenes?
(a) CnH2n+2
(b) CnH2n
(c) CnH2n-2
(d) None of the above
Q5. Which of the following methods is used to estimate nitrogen?
(a) Carius method
(b) Duma’s method
(c) Both (a) and (b)
(d) None of the above
Q6. What are structural isomers?
Q7. Which family is represented by the general formula CnH2n-2? Write the IUPAC name and common name of the first three members of this series.
Q8. What is the principle of chromatography?
Q9. Draw the structure of o-ethyl anisole and 4-ethyl-1-fluoro-2-nitro benzene.
Q10. What is an addition reaction? Give an example.
Q11. Name any two functional groups containing carbonyl bonds.
Q12. Give an example of positional isomers.
Q13. What is a carbocation? Arrange primary, secondary and tertiary carbocation in order of their stability.
Q14. What is an isomerisation reaction? Give an example.
Q15. What is dry ice? Give its one use.
Q16. What is the resonance effect? Draw the resonating structure of nitrobenzene.
Q17. Differentiate between distillation, steam distillation and distillation under reduced pressure.
Q18. Explain the principle of Dumas’s method of nitrogen estimation.
Q19. Differentiate between electrophile and nucleophile.
Q20. 0.395 g of an organic compound by the Carius method for estimating sulphur gave 0.582g of barium sulphate. Calculate the percentage of sulphur in the compound.
Download the PDF to access answers to the Chemistry Worksheet for Class 11 Chemistry Chapter 12 Organic Chemistry – Some Basic Principles & Techniques Set – 4.
Read Also:
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- Class 11 Chemistry Chapter 12 Organic Chemistry – Some Basic Principles and Techniques MCQs
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