MCQ Chapter 4 Carbon and Its Compound Class 10 Science

Please refer to Carbon and Its Compound MCQ Questions Class 10 Science below. These MCQ questions for Class 10 Science with answers have been designed as per the latest NCERT, CBSE books, and syllabus issued for the current academic year. These objective questions for Carbon and Its Compound will help you to prepare for the exams and get more marks.

Carbon and Its Compound MCQ Questions Class 10 Science

Please see solved MCQ Questions for Carbon and Its Compound in Class 10 Science. All questions and answers have been prepared by expert faculty of standard 10 based on the latest examination guidelines.

Question. For gas welding used for welding broken pieces of iron, we normally use a mixture of   
(a) Ethane and oxygen
(b) Ethene and oxygen
(c) Ethyne and oxygen
(d) Ethene and air

Question. Major constituent of LPG is……………   
(a) Ethene
(b) Butane
(c) Propane
(d) Pentane

Question. Which of the following is used to oxidise ethanol to ethanoic acid?   
(a) Alkaline KMnO₄
(b) Conc. H₂SO₄
(c) Acidified K₂Cr₂O₇
(d) All of above

Question. Carbon compounds with single bond called……….   
(a) Unsaturated compound
(b) Carbon compounds
(c) Saturated compounds
(d) Ionic compounds

Question. Ionic compounds have does not show below property.   
(a) High melting point
(b) High boiling point
(c) Conduction of electricity in solid state
(d) Conduction of electricity in molten state

Question. Which of the given is a noble gas?     
(a) Carbon
(b) Argon
(c) Nitrogen
(d) Hydrogen

Question. Which of the following can be used for the denaturation of ethyl alcohol?   
(a) Methyl alcohol
(b) Pyridines
(c) Copper sulphate
(d) All of above

Question. Which of the given has a triple bond?     
(a) Hydrogen molecule
(b) Oxygen molecule
(c) Nitrogen molecule
(d) Ammonia molecule

Question. A hydrocarbon has four carbon atoms. Give its molecular formula if it is an alkene.
(a) C₄H₁₀
(b) C₄H₈
(c) C₄H₆
(d) C4H₄

Question. Soaps are formed by saponification of     
(a) Alcohols
(b) Glycosides
(c) Simple esters
(d) Carboxylic acids

Question. A hydrocarbon should have a minimum of how many carbon atoms to show isomerism?   
(a) Three
(b) Four
(c) Fived
(d) Six

Question. Give the IUPAC name of CH₃COOC₂H₅.
(a) Ethyl ethanoic acid
(b) Butanoate
(c) Ethyl ethanoate
(d) Etyl methyl carboxylic acid

Question. A carbon compound contains two atoms of carbon. Which name should the carbon compound bear?
(a) Butane
(b) Ethane
(c) Methane
(d) Propan

Question. The upper and lower homologue of C₂H₅OH are respectively   
(a) methyl alcohol and butyl alcohol
(b) ethyl alcohol and propyl alcohol
(c) butyl alcohol and propyl alcohol
(d) propyl alcohol and methyl alcohol

Question. Sodium reacts with ethanol gives …………   
(a) Sodium ethoxide
(b) Sodium ethanoate
(c) Sodium ethanol
(d) Sodium hydroxide

Question. ………….has sweet flavoring substance which used in ………….   
(a) Ester, metals
(b) Ethers, sweet mithai
(c) Aldehyde, metals
(d) Ester, perfumes

Question. Which of the given is not an aliphatic hydrocarbon?     
(a) Ethene
(b) Ethane
(c) Propyne
(d) Benzen

Question. Methane, ethane and propane are said to form a homologous series because all are-   
(a) Hydrocarbons
(b) saturated compounds
(c) aliphatic compounds
(d) differ from each other by a CH₂ group

Question. C₂H₂ Called………..   
(a) Ethyne
(b) Butane
(c) Ethane
(d) Propene

Question. Read The Following Sentences Carefully, And Choose The Incorrect One:   
(a) Normal-butane has a straight chain structure whereas iso-butane has a branched chain structure.
(b) All the members of a homologous series can be represented by the different formula.
(c) Isomerism is possible only with hydrocarbons having 4 or more carbon atoms.
(d) The organic compounds having the same molecular formula but different structures are known as isomers.

Question. A reagent which can help us to distinguish between alkenes and alkynes is:   
(a) Bromine water
(b) Carbon tetrachloride
(c) Alkaline KMnO₄
(d) Ammoniacal cuprous chloride

Question. Which of the given is used to oxidise ethanol to ethanoic acid?     
(a) Alkaline KMnO₄
(b) Conc. H₂SO₄
(c) Acidified K₂Cr₂O₇
(d) All of these

Question. A compound of carbon, hydrogen and nitrogen contains these elements in the ratio of their atomic mass 9 : 1 : 3.5, if its molecular mass is 108 u. What is its molecular formula?
(a) C₂H₂N
(b) C₃H₄N
(c) C₂HN₂
(d) C₆H₈N₂

Question. The number of structural isomers of the compound having molecular formula C₄H₉Br is
(a) 3
(b) 5
(c) 4
(d) 2

Question. A sweet smelling compound formed by reacting acetic acid with ethanol in the presence of hydrochloric acid is A
(a) CH₃COOC₂H₅
(b) C₂H₅COOH
(c) C₂H₅COOCH₃
(d) CH₃OH

Question. Ethane with the molecular formula C₂H₆ has :
(a) 6 covalent bonds
(b) 7 covalent bonds
(c) 8 covalent bonds
(d) 9 covalent bonds

Question. During decarboxylation of ethanoic acid with sodalime (NaOH + CaO), CO₂ is removed as –
(a) CO₂
(b) CO
(c) Na₂CO₃
(d) CaCO₃

Question. The molecular formula of carboxylic acid that differs from the rest is
(a) C₁₃H₂6O₂
(b) C₂H₄O₂
(c) C₉H₁₈O₂
(d) C₇H₁₂O₂

Question. An organic compound A on heating with concentrated H2SO4 gave product B and on warming with alkaline KMnO4 gave compound C. Compound A on heating with compound C in presence of concentrated H2SO4 formed compound D, which has fruity smell. Identify the compounds A, B, C and D:
(a) A = Alcohol, B = Carboxylic acid, C = Alkene, D = Ester
(b) A = Carboxylic acid, B = Ester, C = Alkene, D = Alcohol
(c) A = Alcohol, B = Alkene, C = Carboxylic acid, D = Ester
(d) A = Alkene, B = Alcohol, C = Ester, D = Carboxylic acid

Question. A compound ‘X’ reacts with a compound ‘Y’ , to produce a colourless and odourless gas. The gas turns lime water milky. When ‘X’ reacts with methanol in the presence of concentrated H₂SO₄, a sweet smelling substance is produced. The molecular formula of the compound ‘X’ is –
(a) C₂H₄O
(b) C₂H4O₂
(c) C₂H6O
(d) C₂H₆O₂

Question. When ethanoic acid reacts with ethanol, a sweet smelling product is formed. The functional group in the product is
(a) aldehyde
(b) ketone
(c) alcohol
(d) ester

Question. Identify the correct order of boiling points of the following compounds-
(A) CH₃CH₂CH₂CH₂OH
(B) CH₃CH₂CH₂CHO
(C) CH₃CH₂CH₂COOH
(a) (A) > (B) > (C)
(b) (C) > (A) > (B)
(c) (A) > (C) > (B)
(d) (C) > (B) > (A)

Question. The substance not responsible for the hardness of water is   
(a) sodium nitrate
(b) calcium hydrogen carbonate
(c) calcium carbonate
(d) magnesium carbonate

Question. The by product of soap is     
(a) Isoprene
(b) Glycerol
(c) Butene
(d) Ethylene glycol

Question. The general formula for alkanes is C_nH_2n+1–CHO. The value of ‘n’ for the first member.   
(a) 1
(b) 0
(c) 0.5
(d) 1.1

Question. Functional group – COOH is present in which of the following?
(a) Carboxylic acid
(b) Alcohol
(c) Aldehyde
(d) Ketone

Question. IUPAC name of the first member of the homologous series of ketones is
(a) Ethanone
(b) Methanone
(c) Propanone
(d) Butanone

Question. The organic compounds having ketonic group is :
(a) CH₃COOH
(b) CH₃COCH₃
(c) HCOOH
(d) CH₃CH₂OH

Question. The soap molecule has a __ Hydrophilic head and a
(a) hydrophobic tail
(b) Hydrophobic head and a hydrophilic tail
(c) Hydrophobic head and a hydrophobic tail
(d) Hydrophilic head and a hydrophilic tail

Question. How is vinegar made?
(a) By mixing 5 -8 % of acetic acid in water
(b) By mixing 25% of acetic acid in water
(c) By mixing 40% of acetic acid in water
(d) By mixing 50% of acetic acid in water

Question. Hydrophobic end of micelles attack on………….
(a) Water
(b) Oil
(c) Acid
(d) Base

Question. Which of the following is a non-polar molecule?
(a) O₂
(b) HF
(c) NH₃
(d) H₂O

Question. Which allotrope of carbon is in the form of the geodesic globe?
(a) Graphite
(b) Diamond
(c) Fullerene
(d) Carbon nanotube

Question. Ethanol is also known as which of these?
(a) Formic acid
(b) Ethyl alcohol
(c) Ethane
(d) Acetaldehyde

Question. Which is not correct for isomers of a compound?
(a) They differ in physical properties
(b) They differ in chemical properties
(c) They have same molecular formula
(d) They have same structural formula

Question. 2 electron in outer shell. Name the noble gas of element.
(a) Hydrogen
(b) Helium
(c) Carbon
(d) Argon

Question. How many carbon atoms are present in one molecule of ethanoic acid?
(a) One
(b) Two
(c) Three
(d) Four

Question. Oxidation of alcohol get converts into…………
(a) CO₂
(b) CO
(c) Carboxylic acid
(d) Halogen

Question. Who prepared urea the first time by heating ammonium cyanate?
(a) Wohler
(b) Lavosier
(c) Fuller
(d) Haber

Question. Which of the following statements are usually correct for carbon compounds? These
(i) are good conductors of electricity
(ii) are poor conductors of electricity
(iii) have strong forces of attraction between their molecules
(iv) do not have strong forces of attraction between their molecules
(a) (i) and (iii)
(b) (ii) and (iii)
(c) (i) and (iv)
(d) (ii) and (iv)

Question. functional group of alcohol.
(a) –OOH
(b) –OH
(c) –COH
(d) –COOH

Question. Which of the given can be used for the denaturation of ethyl alcohol?
(a) Methyl alcohol
(b) Pyridines
(c) Copper sulphate
(d) All of these

Question. Which of the following property is not shown by covalent compounds?
(a) Exist as crystalline solids
(b) Poor conductors of electricity
(c) Low boiling and melting points
(d) Insoluble in water

Question. Ammonia shows the following formula.
(a) NH₃
(b) NH₄
(c) CH₄
(d) CH₂

Question. Identify the uses of ethanol.
(a) It is used as an organic solvent.
(b) It is used as a fuel in cars along with petrol.
(c) It is used in alcoholic drinks.
(d) All of the above

Question. Mineral Acids Are Stronger Acids Than Carboxylic Acids Because:
(a) Mineral acids are completely ionized, carboxylic acids are partially ionized.
(b) Carboxylic acids are completely ionized, mineral acids are partially ionized.
(c) Mineral acids are completely ionized, carboxylic acids are completely ionized.
(d) Mineral acids are partially ionized, Carboxylic acids are partially ionized.

Question. Covalent compounds
(a) have high melting and boiling point
(b) are mostly soluble in water
(c) are formed between atoms of metals and non-metals
(d) are formed by the sharing of electrons in the bonding atoms.

Question. Which property of methane helps it to be used as a fuel?
(a) It burns exothermically.
(b) It is a gas.
(c) It is odourless.
(d) It has a low boiling point.

Question. Which of the following statements is correct about Buckminster fullerene?
(a) It is like a football.
(b) It looks like a geodesic dome.
(c) It has hexagonal ring structure.
(d) Both (a) and (b)

Question. Functional group – CHO is present in which of the given?
(a) Carboxylic acid
(b) Alcohol
(c) Aldehyde
(d) Ketone