MCQ questions for class 10 Science Chapter 4 Carbon and its Compounds
Question 1: What is the simplest hydrocarbon?
Methane
Ethane
Propane
Butane
Question 2: Which of the following is a saturated hydrocarbon?
Ethene
Methane
Propyne
Butane
Question 3: What is the general formula for alkenes?
CnH2n+2
CnH2n
CnH2n-2
CnH2n-4
Question 4: Which of the following is a functional group in organic compounds?
COOH
OH
NH2
All of the above
Question 5: What is the chemical formula for ethanoic acid?
CH3COOH
HCOOH
CH2COOH
C2H5OH
Question 6: What is the by-product of the reaction between ethanol and oxygen under aerobic conditions?
Carbon dioxide and water
Carbon monoxide and water
Methane and oxygen
Ethylene and water
Question 7: What is the chemical formula for propane?
C2H6
C3H8
C4H10
C5H12
Question 8: What is the process of conversion of organic compounds into petroleum called?
Cracking
Fermentation
Distillation
Polymerization
Question 9: What is the chemical formula for methane?
CH4
C2H6
C3H8
C4H10
Question 10: What is the product of the reaction between ethene and water in the presence of an acid?
Ethanol
Ethanoic acid
Ethanal
Ethylene glycol
Question 11: Which of the following is a non-metallic element present in organic compounds?
Oxygen
Hydrogen
Carbon
Nitrogen
Question 12: What is the chemical formula for ethene?
C2H6
C2H4
C2H2
C2H8
Question 13: What type of bonds are present in alkanes?
Single bonds
Double bonds
Triple bonds
Ionic bonds
Question 14: What is the chemical formula for acetylene?
C2H6
C2H4
C2H2
C2H8
Question 15: What is the process of breakdown of complex organic compounds into simpler ones by microorganisms called?
Photosynthesis
Fermentation
Respiration
Decomposition
Question 16: What is the product of the reaction between methane and chlorine in the presence of sunlight?
Ethane
Chloroform
Chloromethane
Carbon tetrachloride
Question 17: Which of the following is an example of a saturated hydrocarbon?
Ethene
Methane
Propyne
Butane
Question 18: What is the chemical formula for ethyne?
C2H6
C2H4
C2H2
C2H8
Question 19: Which of the following is a common method of preventing rusting?
Galvanization
Tinning
Anodizing
All of the above
Question 20: What is the chemical formula for butanoic acid?
CH3COOH
C2H5COOH
C3H7COOH
C4H9COOH
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