Carbon is known to form a variety of compounds due to the unique properties it possesses. Methane((CH4) is the most general or basic compound formed by carbon. Hydrocarbons is the term used for such compounds that are formed by the combination of hydrogen and carbon.
Download Class 10 Chemistry Worksheet on Chapter 4 Carbon and Its compounds Set 2 PDF
CBSE Class 10 Chemistry Chapter 4 Carbon and its Compounds – Set 2
Q-1: Which of the following statements is correct for carbon compounds?
a) They are bad conductors of electricity
b) They are good conductors of electricity
c) They have strong forces of attraction between their molecules
d) It exists in the form of only CO2 in the atmosphere
Q-2: In the soap micelles,
a) The ionic end of the soap is on the cluster’s surface, while the carbon chain is in the cluster’s interior.
b) The ionic end of the soap is inside the cluster, while the carbon chain is outside of it.
c) both the ionic end and the carbon chain are in the cluster’s interior.
d) Both the ionic end and the carbon chain are outside the cluster.
Q-3: Which of the following is the correct representation of the electron dot structure of nitrogen?
Q-4: Identify and name the functional groups present in the following.
Q-5: a) What are heteroatoms? What is their importance?
b) Which of the molecules below is homoatomic and which is heteroatomic?
Br2,SO2,CH4,P4,O3,NH3,N2, S8, HCl
Q-6: Fill in the blanks
a) Butane and isobutane are ________
b) Sodium paltimate is a __________ while dodecylbenzenesulfonate is a ________
c) Ethene is an _______ compound and decolourises the brown colour of Br2 in CCl4 to form _______.
d) The C-C bond length in graphite is _______ and in diamond is _______
e) Methane molecule is tetrahedral but ethene and benzene are ___________
Q-7: Match the column I with column II
| Column I | Column II |
|---|---|
| A) Neutralisation Reaction | i)  |
| B) Acid Hydrolysis | ii) CH3COOH + NaOH→CH3COONa + H2O |
| C) Dehydration | iii  |
| D) Hydrogenation | iv)  |
Q-8: A young boy sharpens both ends of a pencil and connects them to the pole of a battery. Is the current going to flow through the circuit?
Q-9: Draw the electron dot structures for the following:
i) CH3Cl
ii) propanone
iii) H2S
Q-10: Chlorine reacts with saturated hydrocarbons at room temperature in the
a) presence of sunlight
b) absence of sunlight
c) presence of H2O
d) presence of H2SO4
Q-11: Label the hydrophilic and hydrophobic parts in the following compounds.
a) CH3(CH2)10CH2OSO3–Na+
b) CH3(CH2)14CH2-N+(CH3)3Br–
Q-12: Antifreeze contains the organic compound X. When this compound is heated with oxygen, it produces another compound Y with the molecular formula C2H4O2. Determine the identities of the compounds X and Y. Write a chemical equation for the reaction that results in the compound Y.
Q-13: Complete the following reactions
i) CH3COOH + Na2CO3 →
ii) CH4+O2 →
iii) C2H5OH + Na →
Statement linked for answer questions 14-17
Hydrocarbons are compounds that contain only carbon and hydrogen atoms. They can be saturated or unsaturated. The saturated hydrocarbon can be a straight chain, a branched chain, or a ring of carbon atoms. Unsaturated hydrocarbons, like saturated hydrocarbons, can have straight chains, branched chains, or cyclic structures. Benzene is the most important cyclic compound with six carbon atoms.
Q-14: Out of C4H8,C3H8,C5H12,C6H4, alkanes are?
a) C4H8 and C3H8
b) C5H12 and C4H8
c) C3H8 and C5H12
d) C5H12,C6H4
Q-15: Benzene has the molecular formula of C6H6. Which of the following statements about it are correct?
a) All the carbon atoms are arranged in a six membered ring
b) It contains three carbon-carbon single bonds and three carbon-carbon double bonds
c) It contains six carbon-hydrogen single bonds
d) All statements are correct
Q-16: Consider the compounds:
C2H4,C3H8,C6H6,C4H6
Among these planar molecules are:
a) C3H8 and C6H6
b) C2H4 and C4H6
c) C6H6 and C2H4
d) C2H4 and C6H6
Q-17: Out of C5H8,C2H2,C6H12 and C5H10, are alkynes?
a) C5H8, C2H2
b) C2H2,C6H12
c) C5H10,C2H2
d) C5H10, C5H8
Q-18: i) Calculate the difference in the formulae and molecular masses for
a) CH3OH and C2H5OH
b) C2H5OH and C3H7OH
c) C3H7OH and C4H9OH
ii) Is there any similarity in these? To which series do these compounds belong?
Q-19: By sharing its four electrons with four univalent atoms, such as hydrogen, carbon forms four covalent bonds. After the formation of four bonds,the electronic configuration that carbon attains is of
a) Helium
b) Neon
c) Argon
d) Krypton
Q-20: Compound A (C2H4O2) reacts with Na metal to form compound B, which when burned emits a gas with a pop sound. In the presence of an acid, compound A reacts with an alcohol C to form a sweet-smelling compound D(C4H8O2). When NaOH is added to D, it produces B and C. Determine the compounds A, B, C, and D. Make a list of the equations that are involved.
Download the PDF to access answers to the Chemistry Worksheet for Class 10 Chemistry Chapter 4 Carbon and Its compounds Set – 2
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Read Also:
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