Carbon and its compounds Worksheet-5

Carbon and its compounds Worksheet-5

Fill in the blanks:

1. Carbon can form long chains due to its ____ property.

2. In diamond, each carbon atom is bonded to _____ carbon atoms.

3. There are _____ Pentagonal rings in Buckminster fullerene.

4. _______ is the general name of the class of compounds having general C_nH_2n–2.

5. The next higher homologue of Heptyne is _______.

6. The name of functional group present in CH₃ – CH = CH – CH₃ is ____.

7. _____ burn in air with a yellow sooty flame.

Multiple-Choice Question:

8. Buckminster fullerene is used as lubricant because:

(A) Of its ball like structure                 (B) It is soft and greasy

9. The IUPAC name of is:

(A) Ethyl propyl ketone               (B) Pentanone

(C) Hexanone                                (D) Heptanone

10. The structural formula of fifth member of the homologous series of ketone is:

(A) C₂H₅COC₃H₇                              (B) C₅H₁₁CHO

(C) C₂H₅COC₂H₅                              (D) None of these

11. What is the IUPAC name of given compound CH₃ – CH₂ – CH₂ – C ≡ CH

(A) Pentene         (B) Pentane     (C) Pentyne       (D) Cyclopentane

12. The IUPAC name of the given compound is:

(A) Propanal       (B) Butanal  (C) Pentanal        (D) Propyl aldehyde

13. Which of the following is the structural formula of bromohexane?

(A)

(B)

(C)

(D)

14. What are the products formed in the given reaction?

(A)                            (B)

(C)                           (D) All of these

15. What are the products formed when propane reacts with chlorine in the presence of sunlight?

(A) Ethyl chloride + HCI            (B) Chloro propane + HCI

(C) di-chloro propane + HCI     (D) Tri-chloro propane + HCI

Answer key:

1. Catenation

2. 4/ four

3. 12/ twelve

4. Alkynes/Alkyne

5. Octyne

6. Alkene/Alkenes

7. Unsaturated hydrocarbons/Unsaturated hydrocarbon

8. (A)

9. (C)

10. (C)

11. (C)

12. (B)

13. (D)

14. (A)

15. (B)