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4. Carbon and its Compounds Science class 10 in English Medium ncert book solutions Text-book Questions
4. Carbon and its Compounds Text-book Questions – Complete NCERT Book Solutions for Class 10 Science (English Medium). Get all chapter explanations, extra questions, solved examples and additional practice questions for 4. Carbon and its Compounds Text-book Questions to help you master concepts and score higher.
4. Carbon and its Compounds Science class 10 in English Medium ncert book solutions Text-book Questions
NCERT Solutions for Class 10 Science play an important role in helping students understand the concepts of the chapter 4. Carbon and its Compounds clearly. This chapter includes the topic Text-book Questions, which is essential from both academic and examination point of view. The solutions provided here are prepared strictly according to the latest NCERT syllabus and follow the guidelines of CBSE to ensure accuracy and relevance. Each question is explained in a simple and student-friendly manner so that learners can grasp the concepts without confusion. These NCERT Solutions are useful for regular study, homework help, and exam preparation. All textbook questions are solved step by step to improve problem-solving skills and conceptual clarity. Students of Class 10 studying Science can use these solutions to revise important topics, understand difficult questions, and practise effectively before examinations. The chapter 4. Carbon and its Compounds is explained in a structured way, making it easier for students to connect the theory with the topic Text-book Questions. By studying these updated NCERT Solutions for Class 10 Science, students can build a strong foundation, boost their confidence, and score better marks in school and board exams.
4. Carbon and its Compounds
Text-book Questions
CH-4 Carbon and it’s compound
Q1. What would be the electron dot structure of carbon dioxide which has the formula CO2?
Answer:
Q2. What would be the electron dot structure of a molecule of Sulphur which is made up of eight atoms of sulphur? (Hint – The eight atoms of sulphur are joined together in the form of a ring.)
Answer:
Page no. 68 and 69
Q1. How many structural isomers can you draw for pentane?
Answer:
Q2. What are the two properties of carbon which lead to the huge number of carbon compounds we see around us?
Answer: Two properties of carbon :-
(i) The valency of carbon is four, so it joins with its own atoms with single, double, triple covalent bonds.
(ii) One carbon atom forms long catenation by forming bonds with other carbon atoms. The number of carbon compounds in it is very wide.
Q3. What will be the formula and electron dot structure of cyclopentane?
Answer:
Q4. Draw the structures for the following compounds.
(i) Ethanoic acid
(ii) Bromopentane
(iii) Butanone
(iv) Hexanal.
Are structural isomers possible for bromopentane?
Answer:
Page no. 68
Q1. Why is the conversion of ethanol to ethanoic acid an oxidation reaction?
Answer: Ethanoic + Oxygen → Ethanoic acid. In this way there is increase of oxygen and decrease of hydrogen and these reactions are called oxygen reactions.
Q2. A mixture of oxygen and ethyne is burnt for welding. Can you tell why a mixture of ethyne and air is not used?
Answer: Oxygen is not available in abundance in the air. Oxygen is required for complete combustion in welding, so only mixture of oxygen and ethene is used for welding. This mixture is called oxyacetylene gas.
Page no. 74
Q1. How would you distinguish experimentally between an alcohol and a carboxylic acid?
Answer: On reacting with sodium bicarbonate, the difference between the two is obtained. Sodium bicarbonate does not react with alcohol and does not produce gas. But CO2 gas is emitted when ethanoic acid reacts.
Q2. What are oxidising agents?
Answer: Oxidizers are those substances which oxidise another substance and decompose itself. Example: KMnO4
Page no. 76
Q1. Would you be able to check if water is hard by using a detergent?
Answer: We cannot tell by using detergent whether water is hard or because they produce micelles (foam) in both the conditions.
Q2. People use a variety of methods to wash clothes. Usually after adding the soap, they ‘beat’ the clothes on a stone, or beat it with a paddle, scrub with a brush or the mixture is agitated in a washing machine. Why is agitation necessary to get clean clothes?
Answer: It reacts with soap scum to form a micelle structure. Oily scum tends to collect in the center of the micelles and stick to the clothes, so it is necessary to do this to clean it.
See other sub-topics of this chapter:
1. Chapter Review 2. Text-book Questions 3. Exercise 4. Additional Questions With Solutions 5. Additional Questions With Solutions