WORKSHEET 1
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CLASS X SUBJECT: CHEMISTRY
CHAPTER : CARBON AND ITS COMPOUND
1. Why does carbon forms compounds mainly by covalent bonding?
2. Name the three allotropes of carbon.
3. Which of the following compounds can have a triple bond?
C2H4 C3H4 C3H6
4. Which of the following compounds can have a double bond?
C 4 H 10 C5H8 C 5 H 10
5. Give the names of one saturated cyclic hydrocarbon and one unsaturated
cyclic hydrocarbon.
6. Write the molecular formula and structure of benzene.
7. Write the electron dot structure for the following compounds:
(1) H 2 (2) O 2 (3) N 2 (4)CO 2 (5) S 8 (6) H 2 O (7) NH 3 (8) CCl 4
(9)CH 4 (10) C 5 H 12 (11) C 4 H 8 (12)C 5 H 8 (13)C 7 H 12
(14)C 5 H 10 (15)Cyclopropane (16) Cyclobutane
(17)Cyclopentane (18)Cyclohexane (19)Benzene
8. Define the following with examples:
(a) Hydrocarbon.
(b)Saturated hydrocarbon.
(c )Unsaturated hydrocarbon.
(d)Homologous series.
(e)Functional group.
9. Write the IUPAC Name of the following:
(1) CH 3 – CH 2 – CH 2 – Cl
(2) C 3 H 7 Br
(3) C 2 H 5 I
___________________________________________________________________
CLASS X SUBJECT: CHEMISTRY
CHAPTER : CARBON AND ITS COMPOUND
1. Why does carbon forms compounds mainly by covalent bonding?
2. Name the three allotropes of carbon.
3. Which of the following compounds can have a triple bond?
C2H4 C3H4 C3H6
4. Which of the following compounds can have a double bond?
C 4 H 10 C5H8 C 5 H 10
5. Give the names of one saturated cyclic hydrocarbon and one unsaturated
cyclic hydrocarbon.
6. Write the molecular formula and structure of benzene.
7. Write the electron dot structure for the following compounds:
(1) H 2 (2) O 2 (3) N 2 (4)CO 2 (5) S 8 (6) H 2 O (7) NH 3 (8) CCl 4
(9)CH 4 (10) C 5 H 12 (11) C 4 H 8 (12)C 5 H 8 (13)C 7 H 12
(14)C 5 H 10 (15)Cyclopropane (16) Cyclobutane
(17)Cyclopentane (18)Cyclohexane (19)Benzene
8. Define the following with examples:
(a) Hydrocarbon.
(b)Saturated hydrocarbon.
(c )Unsaturated hydrocarbon.
(d)Homologous series.
(e)Functional group.
9. Write the IUPAC Name of the following:
(1) CH 3 – CH 2 – CH 2 – Cl
(2) C 3 H 7 Br
(3) C 2 H 5 I
