Please refer to Chapter 4 Carbon and Its Compound MCQ Class 10 Science with answers below. These multiple-choice questions have been prepared based on the latest NCERT book for Class 10 Science. Students should refer to MCQ Questions for Class 10 Science with Answers to score more marks in Grade 10 Science exams. Students should read the chapter Carbon and Its Compound and then attempt the following objective questions.

MCQ Questions Class 10 Science Chapter 4 Carbon and Its Compound

The Carbon and Its Compound MCQ Class 10 Science provided below covers all important topics given in this chapter. These MCQs will help you to properly prepare for exams.

Question. Which of the following substance produces brisk effervescence with baking soda solution?   
(a) Ethanoic acid
(b) Table salt
(c) Vinegar
(d) Sunflower oil

Question. Which of the following statements about graphite and diamond is true?   
(a) They have the same crystal structure
(b) They have the same degree of hardness
(c) They have the same electrical conductivity
(d) They can undergo the same chemical reactions

Question. While cooking, if the bottom of the vessel is getting blackened on the outside, it means that: 
(a) The food is not cooked completely
(b) The fuel is not burning completely
(c) The fuel is wet
(d) The fuel is burning completely

Question. Which of the following does not belong to the same homologous series?   
(a) CH₄
(b) C₂H₆
(c) C₃H₈
(d) C₄H₈

Question. Cation is formed when:   
(a) Atom gains electrons
(b) Atom loses electrons
(c) Proton is lost by the atom
(d) Atom shares electrons

Question. Which of the following compounds of carbon does not consist of ions?   
(a) CHCl₃
(b) CaCO₃
(c) NaHCO₃
(d) Ca₂C

Question. Buckminsterfullerene is an allotropic form of: 
(a) Phosphorus
(b) Sulphur
(c) Carbon
(d) Tin

Question. The property of self-linkage among identical atoms to form long chain compounds is known as:   
(a) Catenation
(b) Isomerisation
(c) Superposition
(d) Halogenation

Question. Which of the following is the molecular formula of cyclobutane?   
(a) C₄H₁₀
(b) C₄H₆
(c) C₄H₈
(d) C₄H₄

Question. How many number of carbon atoms are joined in a spherical molecule of buckminsterfullerene?   
(a) 30
(b) 60
(c) 90
(d) 120

Question. In Which Of The Following Compounds, — OH Is The Functional Group?
(a) Butanone
(b) Butanol
(c) Butanoic acid
(d) Butanal

Question. Which is denatured spirit?
(a) ethanol only
(b) ethanol and methanol (50%)
(c) ethanol and methanol (5%)
(d) methanol only

Question. Identify the ionic part of a synthetic detergent.
(a) −SO₃−Na+
(b) −COO−Na+
(c) −COO−H+
(d) −COO−CH₃⁺

Question. IUPAC name of ethyl alcohol is :
(a) Ethanol
(b) Methanol
(c) Acetic Acid
(d) Ethanoic Acid.

Question. Which of the following is an allotrope of carbon?
(a) C₁₂
(b) C₁₄
(c) C₆₀
(d) C₇₂

Question. Dilute alkaline solution KMnO4 is
(a) an oxidizing agent
(b) a reducing agent
(c) a bleaching agent
(d) none of these

Question. The allotrope of carbon which is a good conductor of heat and electricity is
(a) diamond
(b) graphite
(c) charcoal
(d) none of these

Question. Class of compound with suffix ‘one’
(a) Aldehyde
(b) Alcohol
(c) Ketone
(d) Alkane

Question. The name of the compound CH₃ — CH₂ — CHO is
(a) Propanal
(b) Propanone
(c) Ethanol
(d) Ethanal

Question. The difference between two consecutive members in a homologous series in alkanes in terms of molecular mass and number of atoms of elements is :
(a) 14 a.m.u and CH respectively
(b) 12 a.m.u and CH respectively
(c) 14 a.m.u and CH₂ respectively
(d) 12 a.m.u and CH₃ respectively

Question. Identify an unsaturated hydrocarbon that has a cyclic structure.
(a) Ethene
(b) Butene
(c) Benzene
(d) Pentene

Question. Detergents can be used for washing of clothes
(a) only in hard water
(b) only in soft water
(c) both in soft and hard water
(d) None of the above

Question. Which form of carbon is found in Golkonda mines of Karnataka?
(a) Diamond
(b) Graphite
(c) Coal
(d) Coke

Question. Which of the followings is the major constituent of the liquefied petroleum gas?   
(a) Methane
(b) Ethane
(c) Propane
(d) Butane

Question. Ester is formed by the reaction between:   
(a) An acid and an alcohol
(b) An acid and a base
(c) A base and an alcohol
(d) An acid and an alkene

Question. What is denatured alcohol?   
(a) Ethyl alcohol which has been made unfit for drinking purpose by adding small amount of poisonous substance
(b) Methyl alcohol which has been made unfit for drinking purpose by adding small amount of poisonous substance
(c) Alcohol having properties of an acid
(d) Ethyl alcohol containing 60% of water by weight

Question. Carbon exists in the atmosphere in the form of:   
(a) Only carbon monoxide
(b) Carbon monoxide in traces and carbon dioxide
(c) Only carbon dioxide
(d) Coal

Question. A molecule of ammonia (NH₃) has:   
(a) Only single bonds
(b) Only double bonds
(c) Only triple bonds
(d) Two double bonds and one single bond

Question. The organic compounds having functional group are known as:   
(a) Aldehyde
(b) Ketone
(c) Carboxylic acids
(d) Alcohol

Question. The I.U.P.A.C name of CH₃CH₂CH=CH₂ is?   
(a) 3-Butene
(b) Prop-1-ene
(c) But-1-ene
(d) Butyne

Question. From which of the following substance pencil lead is formed?   
(a) Charcoal
(b) Wood
(c) Lead
(d) Graphite

Question. Solubility of alcohol in water is due to
(a) low density of alcohol
(b) volatile nature of alcohol
(c) ionisation
(d) hydrogen bonding

Question.The number of isomers of pentane is
(a) 2
(b) 3
(c) 4
(d) 5

Question. In diamond, each carbon atom is bonded to four other carbon atoms to form
(a) a hexagonal array
(b) a rigid three-dimensional structure
(c) a structure in the shape of a football
(d) a structure of a ring

Question. Enzyme which converts starch into glucose is
(a) Zymase
(b) Maltase
(c) Diastase
(d) Invertase

Question. Rectified spirit is
(a) 50% ethanol
(b) 80% ethanol
(c) 95% ethanol
(d) 40 to 50% ethanol

Question. Assertion: Ethanoic acid reacts with ethyl alcohol in presence of cone H₂SO₄ to form ethyl ethanoate.
Reason: Esters are used in ice creames and cold drinks.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
(e) Both A and R are false.

Question. The IUPAC name of CH₃CHO is
(a) Acetaldehyde
(b) Formaldehyde
(c) Methyl formaldehyde
(d) Ethanal

Question. Artificial flavour for orange is obtained from
(a) amyl acetate
(b) isoamyl valerate
(c) methyl butyrate
(d) octyl acetate

Question. Which of the following belongs to homologous series of alkynes?
C₆H₆, C₂H₆, C₂H₄, C₃H₄.
(a) C₆H₆
(b) C₂H₄
(C) C₂H₆
(d) C₃H₄

Question. Soaps are formed by the saponification of
(a) Alcohols
(b) simple ester
(c) carboxylic acids
(d) glycerides

Question. C₃H₈ belongs to the homologous series of
(a) Alkynes
(b) Alkenes
(c) Alkanes
(d) Cyclo alkanes

Question. The first member of the alkyne homologous series is
(a) propyne
(b) ethyne
(c) methane
(d) ethene

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