Every question from this NCERT chapter, with a detailed explanation.
Which carbon allotrope has a structure resembling a geodesic dome or football?
What is the major chemical component of Compressed Natural Gas (CNG)?
Which functional group characterises the alcohol family of compounds?
Adding ethanoic acid to sodium carbonate yields which gaseous product that turns lime-water milky?
With reference to the occurrence of carbon in nature, consider the following statements: 1. The Earth's crust contains a minute amount of carbon in the form of minerals. 2. The atmosphere contains approximately 21% carbon dioxide by volume. 3. Carbon forms a part of biomolecules in living organisms. Which of the statements given above is/are correct?
Which suffix is used to indicate the presence of a triple bond in a carbon chain?
Why is a larger quantity of soap required to produce lather in hard water compared to soft water?
Which of the following is a general property of covalently bonded carbon compounds?
Which of the following correctly identifies the functional group for carboxylic acids?
Consider the following statements regarding typical carbon compounds: 1. They generally possess higher melting and boiling points than ionic compounds. 2. They are largely non-conductors of electricity. 3. Their bonding involves the sharing of valence electrons. Which of the statements given above are correct?
Match List-I with List-II and select the correct answer using the code given below: List-I (Molecule) | List-II (Type of Bond) A. Nitrogen ($N_2$) | 1. Single bond formed by sharing one electron pair B. Hydrogen ($H_2$) | 2. Double bond formed by sharing two electron pairs C. Oxygen ($O_2$) | 3. Triple bond formed by sharing three electron pairs D. Chlorine ($Cl_2$) | 4. Single bond in a diatomic halogen
Assertion (A): Graphite is a good conductor of electricity. Reason (R): Graphite has a layered structure where layers are held together by weak van der Waals forces.
Consider the following statements regarding the carbon allotrope known as Buckminsterfullerene: 1. It contains 60 carbon atoms clustered together. 2. The atoms are arranged in a flat hexagonal lattice structure. 3. It is named after the scientist who discovered the electron. Which of the statements given above is/are correct?
Match List-I with List-II and select the correct answer using the code given below: List-I (Class of Compound) | List-II (Suffix) A. Ketone | 1. -al B. Carboxylic acid | 2. -one C. Alcohol | 3. -oic acid D. Aldehyde | 4. -ol
According to IUPAC nomenclature, a three-carbon chain compound containing a ketone functional group is named as:
Which of the following statements correctly describe the origin of common fossil fuels? 1. Coal was formed from the remains of trees and other vegetation. 2. Petroleum and natural gas were formed exclusively from terrestrial trees. 3. Oil and gas moved through porous rocks and became trapped. Select the correct answer using the code given below.
Hydrogenation of an unsaturated hydrocarbon to a saturated one is commonly carried out using which catalyst?
The chlorination of methane in sunlight to form chloromethane is an example of which type of reaction?
When metallic sodium reacts with ethanol, which gas is evolved along with the formation of sodium ethoxide?
Which products are formed when ethanoic acid reacts with ethanol in the presence of an acid catalyst?
Which part of a soap molecule is hydrophobic?
Which of the following hydrocarbons is unsaturated?
What is the melting point of pure ethanoic acid?
Why does a soap solution often appear cloudy?
In a homologous series of alcohols, the similarity in chemical behaviour is primarily due to:
Functional groups confer specific properties to carbon compounds largely irrespective of which factor?
Which of the following elements exhibits the most extensive property of catenation?
Which allotrope of carbon is a good conductor of electricity?
Which process is used to convert unsaturated vegetable oils into saturated fats?
Which catalyst is commonly used in the hydrogenation of vegetable oils?
What is the product formed when ethanol is dehydrated with concentrated sulphuric acid at 443 K?
A 5-8% aqueous solution of acetic acid is commonly known as:
The reaction of methane with chlorine in sunlight is an example of which type of reaction?
Hydrocarbons containing only single bonds between carbon atoms are called:
Compounds having the same molecular formula but different structural arrangements are known as:
The unique ability of carbon to form bonds with other carbon atoms giving rise to large molecules is called: