Show Topics. (a) carboxylic acid (b) only alkenes (a) C6H6 These MCQ Questions on Carbon and Its Compounds Class 10 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. (e) Both A and R are false. (d) alcohol, Question 12. (c) Cl2 Question 40. (b) 80% ethanol The first member of the alkyne homologous series is (c) carboxylic acids (d) the is burning completely. (c) CH3CH2 (d) Butanone, Question 34. (a) 10 Alcohols can be produced by the hydration of Question 36. (b) CO2 (a) the fuel is not cooked completely. Which of the following contains covalent bond? (c) A is true but R is false. (b) Ethyl alcohol (c) only alkynes A soap molecule has a (d) 40 to 50% ethanol, Question 26. (b) volatile nature of alcohol Some important series of aliphatic compounds are listed below: If we examine the unbranched alkanes, we notice that each alkane differs from the preceding alkane by one —CH 2 — group. (d) Ethanal, Question 27. (c) sulphur (c) It is not soluble in water A series of carbon compounds in which same functional group substitutes the hydrogen atom is called a homologous series. Students can solve these Carbon and Its Compounds Class 10 MCQs Questions with Answers and assess their preparation level. (d) acids, Question 13. The odour of acetic acid resembles that of (d) HCl. (d) CH3 and 16u, Question 37. (b) C3H8 (b) It requires large amount of energy to form C4+ or C4– (c) 95% ethanol (a) low density of alcohol Assertion: Ethanoic acid reacts with ethyl alcohol in presence of cone H2SO4 to form ethyl ethanoate. Which amongst the following will conduct electricity? (c) hydrophilic head and hydrophilic tail (b) Formaldehyde (a) C6H12O6 In diamond, each carbon atom is bonded to four other carbon atoms to form (c) Methyl formaldehyde (c) 4 Students can solve these Carbon and Its Compounds Class 10 MCQs Questions with Answers and assess their preparation level. (c) a structure in the shape of a football (d) A is false but R is true. (b) Both A and R are true but R is not the correct explanation of A. (a) hydrophobic head and hydrophobic tail (d) C3H4, Question 30. (c) carbon dioxide only (b) CH3COOH The number of covalent bonds in C4H10 is (d) They can undergo the same chemical reactions, (d) They can undergo the same chemical reactions, Question 9. (d) It has no free electrons to conduct electric current. (d) CO, Question 20. (C) C2H6 The difference in the formula and molecular masses of CH3OH and C2H5OH is The self linkage property (catenation) is maximum in (a) Rose (a) Alkynes There are a number of homologous series in organic compounds. Ethanol reacts with Na metal to form Solubility of alcohol in water is due to (a) Ethanone (b) KCl(s) (b) Ethylene glycol (a) esters (a) Both A and R are true and R is the correct explanation of A. (d) NaCl (aq), Question 2. (a) 2 (b) 6 General formula for alcohols is C n H 2n + 1 OH. (b) hydrophobic head and hydrophilic tail Which of the following statements about graphite and diamond is true? (b) 3 Have a glance at the MCQ of Chapter 4 Science Class 10 and cross-check your answers during preparation. (d) both alkenes and alkynes, Question 29. (d) ethene, Question 31. The successive members vary from each other by a CH 2 unit. Diamond is not a good conductor of electricity because (b) aldehyde Which of the following belongs to homologous series of alkynes? (c) alcohols IUPAC name of first member of homologous series of ketones is Reason: Esters are used in ice creames and cold drinks. (c) acetic acid (b) silicon (d) glycerides, Question 21. (d) Urea, Question 23. (c) It shares its valence electrons to complete its octet. Question 4. (d) Oxidation reaction. (b) Br2 (aq) water (c) Displacement reaction MCQ Questions for Class 10 Science with Answers are prepared as per the Latest Exam Pattern. (a) Zymase (c) 8 The number of C-H bonds in ethane C2H6 molecule are Question 15. (e) Both A and R are false. (d) It has no free electrons to conduct electric current. Homologous Series. (b) CO2 and water (d) CH3C00H + H2O, Question 6. (a) Alkenes Assertion: Soaps are 100% biodegradable but do not work well with hard water. (a) a hexagonal array MCQ Questions for Class 10 Science with Answers are prepared as per the Latest Exam Pattern. (c) methane Question 14. (b) the fuel is not burning completely. Question 35. – CHO represents the functional group (b) Burning Plastic (a) CH3CHO (a) propyne Soaps are formed by the saponification of (a) They have the same crystal structure Ethane and ethene can be distinguished by For example, methane, ethane, propane, butane, etc. (b) isoamyl valerate The IUPAC name of CH3CHO is Rectified spirit is (a) MgCl2 (a) Br2(l) Homologous Series. (c) A is true but R is false. (c) methyl butyrate Addition reactions are undergone by (c) CH4 (a) 50% ethanol (a) CH4 Question 1. For example, the series of alkanes i.e. (d) 10, Question 16. CBSE Class 10 Science Chapter 4 Notes Carbon and its Compounds ... Homologous series: A series or a family of organic compounds having the same functional group, similar chemical properties and successive (adjacent) member of which differ by a —CH2 unit or 14 mass units, is known as homologous series. (d) 5, Question 24. Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. 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Alkanes with general formula C n H 2n+2, alkenes with general formula C n H 2n and alkynes with general formula C n H 2n-2 form the most basic homologous series in organic chemistry. (b) CH2 and 14u (a) H2 Examples of Homologous series. Class 10 Chemistry Carbon and Its Compounds. (d) aldehydes. (d) All the above, Question 18. Students are advised to practice the NCERT MCQ Questions for Class 10 Science Chapter 4 Carbon and Its Compounds with Answers Pdf free download is available here. Artificial flavour for orange is obtained from The first compound to be prepared in the laboratory was Why does carbon form compounds mainly by covalent bonding? Enzyme which converts starch into glucose is (d) CH3COOCH3, Question 10. Some examples: Methanol is an important raw material used in the manufacture of duels, adhesives and solvents. (a) saturated hydrocarbons (alkanes) (d) Cyclo alkanes, Question 22. (a) Both A and R are true and R is the correct explanation of A. (b) methanone (c) glycerol (a) Acetaldehyde For example, methane and ethane are homologues and belong to the same homologous series. (a) carbon monoxide only (a) There are four electrons in the outermost shell of carbon. These compounds have similar chemical properties due to the addition of same kind of functional group throughout the chain. (d) C2H4, Question 19. This is an example of (b) 8 (b) alkynes (b) Alkenes (d) acetone/ethanone, Question 28. Question 5. (a) amyl acetate (c) 13 (a) Addition reaction (c) C2H5OH (b) simple ester (b) CaF2 (b) Both A and R are true but R is not the correct explanation of A. (d) coal, (b) carbon monoxide in traces and carbon dioxide, Question 7. (b) C2H4 Which of the following will undergo addition reactions? Students are advised to practice the NCERT MCQ Questions for Class 10 Science Chapter 4 Carbon and Its Compounds with Answers Pdf free download is available here. (d) Invertase, Question 25.
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