Organic chemistry is the study of hydrocarbons and their derivatives. They are vital for supporting life on earth. We rely on organic compounds for food, clothing, medicines, etc. These organic molecules which make our life probable include molecules like proteins which comprise elemental compounds of our blood, muscles and skin. Our body is controlled and supported by complex organic molecules. So, organic chemistry plays an important role in our life.
Download Class 11 Chemistry Worksheet on Chapter 12 Organic Chemistry – Some Basic Principles & Techniques Set 1 PDF
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CBSE Class 11 Chemistry Chapter 12 Organic Chemistry – Some Basic Principles & Techniques Worksheet – Set 1
Q1. Which of the following carbocation is most stable?
(a) (CH3)2 CH+
(b) Ph3 C+
(c) CH3 CH2+
(d) None of the above
Q2. The molecule in which the distance between the neighbouring carbon atom is least is an ______.
(a) Alkane
(b) Alkene
(c) Alkyne
(d) All of them have equal distance
Q3. What is the general formula of cycloalkanes?
(a) CnH2n
(b) CnH2n-1
(c) CnH2n+1
(d) None of the above
Q4. Which of the following is not a cyclic compound?
(a) Neopentane
(b) Phenol
(c) Pyrrole
(d) None of the above
Q5. Which of the following hybridisation has maximum s characteristics?
(a) sp
(b) sp2
(c) sp3
(d) All of them have the same s characteristic
Q6. How many sigma and pi bonds are present in 1,2- propadiene?
Q7. What is homologous series?
Q8. How many isomers are possible for monosubstituted and disubstituted benzene?
Q9. Draw the bond line structure of heptan-4-one.
Q10. Draw the structure and IUPAC name of an alkane having the lowest molecular mass containing a quaternary carbon.
Q11. Answer the following questions.
(a) How many sigma and pi bonds are present in ethane?
(b) What is the hybridisation of all the carbons in propene?
Q12. What type of structural isomerism is shown by
CH3-S-CH2-CH2-CH3 and CH3-S-CH(CH3)2
Q13. Answer the following questions.
(a) Name a compound that does not contain halogen but gives a positive Beilstein’s test.
(b) What will happen during Lassaignes’s test for nitrogen if sulphur impurities are present in the compound?
Q14. How will you separate a mixture of ortho nitrophenol and para nitrophenol?
Q15. How will you separate benzoic acid from a mixture of benzoic acid and naphthalene?
Q16. What are electrophiles and nucleophiles? Give some examples.
Q17. Draw the condensed and bond line formula of the following compounds.
N≡C-CH(OH)-C≡N
NH2-CH2-CH3-CH2-CH2-CH2-CH2-COOH
Q18. Suggest methods for the separation of the following mixtures.
(a) A mixture of liquid A (Boiling point = 365 K) and liquid B (Boiling point = 355 K).
(b) A mixture of liquid A (Boiling point = 348 K) and liquid B (Boiling point = 578 K).
Q19. Answer the following questions.
(a) What is the cause of geometrical isomerism?
(b) Why do we fuse organic compounds with sodium while testing for halogen, nitrogen, sulphur and phosphorus?
Q20. Differentiate between inductive and resonance effects.
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Read Also:
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