Class 10 Science Chapter 4 Carbon and Its Compound MCQ Questions with Answer

Carbon and Its Compound Class 10 MCQ is one of the best strategies to prepare for the CBSE Class 10 Board exam. If you want to complete a grasp concept or work on one’s score, there is no method except constant practice. Students can improve their speed and accuracy by doing more Carbon and Its Compound class 10, which will help them all through their board test.

Carbon and Its Compound Class 10 MCQ Questions with Answers

Class 10 Science MCQ with answers are given here to chapter 4 Carbon and Its Compound. These MCQs are based on the latest CBSE board syllabus and relate to the latest Class 10 Science syllabus. By Solving these Class 10 MCQs, you will be able to analyze all of the concepts quickly in the chapter and get ready for the Class 10 Annual exam.

Learn Carbon and Its Compound Class 10 MCQ with answers pdf free download according to the latest CBSE and NCERT syllabus. Students should prepare for the examination by solving CBSE Class 10 Carbon and Its Compound MCQ with answers given below.

Question 1. A phenomenon by which an element occurs in different physical modification in same physical state is called     
(1) Isomerism
(2) Allotropy
(3) Amorphous
(4) Crystalline

Question 2. Number of electrons shared between carbon carbon atoms in ethene is     
(1) 2
(2) 4
(3) 6
(4) 8

Question 3. How many unshared pairs of electrons are present in water molecule?   
(1) One
(2) Zero
(3) Two
(4) Three

Question 4. Nitrogen molecule involves formation of   
(1) Single covalent bond
(2) Double covalent bond
(3) Triple covalent bond
(4) Ionic bond

Question 5. In fullerene carbon atoms are arranged in mixed   
(1) tetragons and pentagons
(2) pentagons and hexagons
(3) pentagons and heptagons
(4) All are correct

Question 6. Among the following the one having longest chain is   
(1) Neopentane
(2) Isopentane
(3) 2-Methylpentane
(4) 2,2-Dimethylbutane

Question 7. Which of the following does not contain double bond?   
(1) CO₂
(2) C₂H₄
(3) HCl
(4) O₂

Question 8. Which of the following is not an allotropic form of carbon? 
(1) Fullerene
(2) Fluorine
(3) Diamond
(4) Graphite

Question 9. Diamond is not a good conductor of electricity because 
(1) it is very hard
(2) its structure is very compact
(3) it is not water soluble
(4) it has no free electrons

Question 10. In order to form branching, an organic compound must have a minimum number of 
(1) four carbon atoms
(2) three carbon atoms
(3) five carbon atoms
(4) six carbon atoms

Question 11. In C₆H₁₄ the number of possible isomers is 
(1) 3
(2) 6
(3) 4
(4) 5

Question 12. Which is not a property of graphite?   
(1) It melts at 800°C
(2) It is a smooth, crystalline form of carbon
(3) It is a good conductor of electricity
(4) It forms a black sign on the paper

Question 13. Which of the following gases is called ‘Marsh gas’?   
(1) H₂
(2) CH₄
(3) C2H₄
(4) C2H₂

Question 14. Which of the following is purest form of carbon?   
(1) Diamond
(2) Coal
(3) Wood
(4) Paper

Question 15. Which of the following is not a saturated hydrocarbon? 
(1) Cyclohexane
(2) Benzene
(3) Butane
(4) Isobutane

Question 16. Which of the following is a pair of saturated hydrocarbon ?   
(1) Butane and isobutane
(2) Cyclohexane and hexene
(3) Propanal and propanone
(4) All of these

Question 17. Pentane has the molecular formula C₅H₁₂. It has 
(1) 5 covalent bonds
(2) 12 covalent bonds
(3) 16 covalent bonds
(4) 17 covalent bonds

Question 18. Which of the following statements is not correct ?   
(1) A common functional group is present in different members of a homologous series.
(2) Two consecutive members of a homologous series differ by a –CH3 group.
(3) The members of a homologous series can be represented by one general formula.
(4) Different members of a homologous series have similar chemical properties.

Question 19. The difference in molecular weight of two consecutive members of a homologous series is 
(1) 15
(2) 14
(3) 8
(4) 9

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Question 20. The substance that would not at all be formed during the reaction of methane and chlorine in presence of sunlight is   
(1) CH₃Cl
(2) CHCl₃
(3) CH₃CH₂CH₃
(4) CH₂Cl₂

Question 21. Methane, ethane and propane are said to form a homologous series because all are   
(1) hydrocarbons
(2) saturated hydrocarbons
(3) aliphatic hydrocarbons
(4) differ from each other by –CH₂ group

Question 22. Unsaturation in the organic compound can be tested by the help of 
(1) Baeyer’s test
(2) Fehling’s test
(3) Chlorination reaction
(4) Dehydration reaction

Question 23. The reaction hv 4 2 light 3 CH + Cl ¾¾¾→CH Cl +HCl is an example of 
(1) addition reaction
(2) substitution reaction
(3) elimination reaction
(4) oxidation reaction

Question 24. The IUPAC name of the compound CH₂ = C(CH₃)₂ is   
(1) 1,1-Dimethylprop-2-ene
(2) 2-Methylprop-1-ene
(3) 2-Ethyl-3,3-dimethylbutane
(4) 2,3-Dimethylhexane

Question 25. Glacial acetic acid is   
(1) frozen acetic acid
(2) 5–8% solution of acetic acid
(3) mixture of acetic acid and alcohol
(4) None of these

Question 26. The fo llowing reactio n is an example of CH₄ + 2O₂ → CO₂ + 2H₂O + heat + light   
(1) addition reaction
(2) substitution reaction
(3) combustion reaction
(4) displacement reaction

Question 27. The functional group present in butanone is   
(1) Carboxy
(2) Ketonic
(3) Aldehydic
(4) Alcoholic

Question 28. The number of oxygen molecules used in the combustion of 1 molecule of ethanol is   
(1) 1
(2) 2
(3) 3
(4) 4

Question 29. When ethanoic acid is heated with NaHCO₃ the gas evolved is   
(1) H₂
(2) CO₂
(3) CH₄
(4) CO

Question 30. Ethene can be prepared by reaction of ethanol with 
(1) Hot conc. H₂SO₄
(2) Alkaline KMnO₄
(3) Sodium metal
(4) NaHCO₃

Question 31. When methane is burnt in an excess of air, the products of combustion are   
(1) C and H₂O
(2) CO and H₂O
(3) CO₂ and H₂
(4) CO₂ and H₂O

Question 32. In the reaction CH₃COONa + NaOH → the gas obtained is 
(1) C₂H₆
(2) C₂H₂
(3) CH₄
(4) C₂H₆

Question 33. C2H₄ reacts with hydrogen in presence of Ni to give   
(1) CH₄
(2) C2H6
(3) HCOOH
(4) HCHO

Question 34. The reaction, 2C₂H₅OH + 2Na → 2C₂H₅ONa + H₂ suggests that ethanol is 
(1) acidic in nature
(2) basic in nature
(3) amphoteric in nature
(4) neutral in nature

Question 35. Conversion of ethanol to ethanoic acid is a/an 
(1) substitution reaction
(2) oxidation reaction
(3) addition reaction
(4) rearrangement reaction

Question 36. The by-product of soap industry is 
(1) glycerol
(2) glycol
(3) isoprene
(4) acid

Question 37. Which of the following salts when dissolved in water produce hard water ? 
(1) Calcium sulphate
(2) Magnesium bicarbonate
(3) Calcium bicarbonate
(4) All of these

Question 38. Ethanol on complete oxidation gives   
(1) carbon dioxide and water
(2) acetaldehyde
(3) acetic acid
(4) acetone

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