Identify the unsaturated compounds from the following:
  • (i) and (ii)
  • (ii) and (iv)
  • (iii) and (iv)
  • (ii) and (iii)
Which of the following are correct structural isomers of butane?
  • (i) and (iii)
  • (ii) and (iv)
  • (i) and (ii)
  • (iii) and (iv)
Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e. g. , hydrogen. After the formation of four bonds, carbon attains the electronic configuration of
  • helium
  • neon
  • argon
  • krypton
Which of the following statements are usually correct for carbon compounds? These
  • (i) and (iii)
  • (ii) and (iii)
  • (i) and (iv)
  • (ii) and (iv)
How many electrons are there in the outermost orbit of carbon?
  • Two
  • Three
  • One
  • Four
Which of these is true for most of the organic compounds?
  • High melting and boiling points
  • Low melting point but high boiling point
  • High melting point but low boiling point
  • Low melting and boiling points
Hydrocarbons are mainly composed of which of these?
  • Hydrogen, carbon and nitrogen
  • Hydrogen and carbon
  • Hydrogen
  • Hydrogen, oxygen and carbon
How many double bonds are there in a saturated hydrocarbon?
  • One
  • Two
  • Three
  • Zero
Successive members of a homologous series vary by how many atomic mass unit?
  • Sixteen
  • Fourteen
  • One
  • Twelve
Ethanol is also known as which of these?
  • Formic acid
  • Ethyl alcohol
  • Ethane
  • Acetaldehyde
Ethanoic acid is also known as which of these?
  • Citric acid
  • Nitric acid
  • Acetic acid
  • Formic acid
Soaps are ester of which type of acids?
  • Formic acid
  • Fatty acid
  • Inorganic acid
  • Acetic acid
Which of these is not an organic acid?
  • Acetic acid
  • Tartaric acid
  • Nitric acid
  • Formic acid
Which of the following is not an allotropic form of carbon?
  • Fluorine
  • Fullerene
  • Diamond
  • Graphite
MCQ Questions for Class 10 Science Chapter 4 Carbon and Its Compounds with Answers 4
In the above given reaction, alkaline KMnO4 acts as
  • reducing agent
  • oxidising agent
  • catalyst
  • dehydrating agent
Ethane, with the molecular formula  \(\text{C}_2\text{H}_6\) has
  • 9 covalent bonds
  • 7 covalent bonds
  • 6 covalent bonds
  • 8 covalent bonds
Benzene with molecular formula, \(\text{C}_6\text{H}_6\) has
  • 18 single bonds only
  • 6 single bonds and 6 double bonds
  • 12 double bonds only
  • 12 single bonds and 3 double bonds
Detergents are sodium or potassium salts of long-chain
  • sulphonic acids
  • ketones
  • carboxylic acid
  • aldehydes
Butanone is a four-carbon compound with the functional group
  • alcohol
  • ketone
  • aldehyde
  • carboxylic acid
Which of the following represents the correct order of unsaturation?
  • Alkanes, alkenes, alkynes
  • Alkanes, alkynes, alkenes
  • Alkenes, alkynes, alkanes
  • Alkynes, alkenes, alkanes
0 h : 0 m : 1 s

Answered Not Answered Not Visited Correct : 0 Incorrect : 0