Carbon and its Compounds is a cornerstone chapter of Class 10 Chemistry, serving as the foundation for Organic Chemistry in higher secondary education. For the CBSE Board Exams, this chapter is crucial because it explores the unique versatile nature of carbon, including its ability to form stable covalent bonds through catenation and tetravalency. Students must master the concepts of homologous series, functional groups, and the chemical properties of carbon compounds to secure high marks in both objective and descriptive sections.
This practice quiz is meticulously designed based on the latest NCERT syllabus and the 2024-25 CBSE exam pattern. It covers essential topics like the properties of ethanol and ethanoic acid, the cleansing action of soaps, and the structural representation of hydrocarbons. By solving these 30 high-quality MCQs, students will enhance their critical thinking skills and gain the confidence required to tackle application-based questions in the actual examination.
30
Minutes
30
Questions
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Marking
Q1. Carbon forms covalent bonds by sharing its valence electrons. How many electrons does a carbon atom need to share to achieve a stable octet configuration?
2
3
4
1
Q2. What is the total number of covalent bonds present in a molecule of ethane ()?
6
7
8
9
Q3. Which of the following allotropes of carbon is a good conductor of electricity?
Diamond
Graphite
Fullerene
Coke
Q4. Two successive members of a homologous series differ in their molecular formula by:
Q5. What is the general formula for the Alkyne homologous series?
Q6. Which functional group is present in the compound Propanone ()?
Aldehyde
Alcohol
Ketone
Carboxylic acid
Q7. Pentane has the molecular formula . How many structural isomers can be drawn for Pentane?
2
3
4
5
Q8. When methane reacts with chlorine in the presence of sunlight, the reaction is called a:
Addition reaction
Oxidation reaction
Substitution reaction
Combustion reaction
Q9. Vegetable oils are converted into vegetable ghee (hydrogenation) using which catalyst?
Iron
Nickel
Copper
Zinc
Q10. Why does carbon not form cation?
It requires a large amount of energy to remove 4 electrons.
Carbon is a non-metal.
The nucleus cannot hold 4 electrons.
It is already stable.
Q11. Which substance is formed when ethanol is heated with excess concentrated sulphuric acid at ?
Ethane
Ethene
Ethanoic acid
Ethyl ethanoate
Q12. Vinegar is a solution of:
50%-60% acetic acid in alcohol
5%-8% acetic acid in alcohol
5%-8% acetic acid in water
50%-60% acetic acid in water
Q13. What is the observation when ethanoic acid reacts with sodium hydrogen carbonate?
Evolution of a pungent-smelling gas.
Evolution of a colorless, odorless gas that turns lime water milky.
Formation of a yellow precipitate.
No reaction takes place.
Q14. The reaction between an alcohol and a carboxylic acid to form a sweet-smelling substance is called:
Saponification
Esterification
Hydrogenation
Oxidation
Q15. Saponification is the process of:
Formation of esters.
Hydrolysis of esters by a base to form soap and alcohol.
Addition of hydrogen to oils.
Conversion of ethanol to ethanoic acid.
...and 15 more challenging questions available in the interactive simulator.