VERY IMPORTANT QUESTIONS || CARBON AND ITS COMPOUNDS || CLASS 10 || TEST -01 || 10 QUESTIONS ||

VERY IMPORTANT QUESTIONS || CARBON AND ITS COMPOUNDS || CLASS 10 || TEST -01 || 10 QUESTIONS || #achieversacademy #chemistry #achieversacademyhaldwani #education #cbseboard #physics #carbonanditscompoundsclass10 #class10th #science #veryimportantquestion #ncert #multiplechoicetest #boardexam #board2026 An organic compound A of molecular formula C2H6O on oxidation gives an acid B with the same number of carbon atoms in the molecule as A. Compound A is used for sterilization of skin by doctors. Name the compounds A and B. a. Compound A isC2H5OH nd B is CH3CHO b. Compound A is CH3OCH3  and B is CH3COOCH3 c. Compound A is C2H5OH and B is CH3COOH d. Compound A is CH3COOH and B is C2H5COOH 2. Soap doesn’t work well with woollen garments because: A. It is basic in nature and woollen garments have acidic dyes. B. It is acidic in nature and woollen garments have basic dyes. a. None of these b. (A) c. (B) d. Both (A) and (B) 3. A few drops of ethanoic acid are added to solid sodium bicarbonate. Which of the following observations would be observed? a. Evolution of brown fumes b. Evolution of a pungent smelling gas. c. Brisk effervescence d. Production of a hissing sound To practice more questions & prepare well for exams, download myCBSEguide App. It provides complete study material for CBSE, NCERT, JEE (main), NEET-UG and NDA exams. Teachers can use Examin8 App to create similar papers with their own name and logo. 4. Which of the following compounds contain carboxylic group? a. CH3  - CH2  - CH3 b. CH3CH2COOH c. CH3COOC2H5 d. CH3CH2OH 5. Match the following with the correct response: (1) Soap (A) Sodium salts of long-chain of sulphonic acids (2) Detergents (B) Esterification (3) The reaction of CH3COOH with metal hydroxides (C) Neutralization (4) The reaction of CH3COOH with alcohols (D) Sodium salts of long-chain fatty acids a. (i) - (c), (ii) - (b), (iii) - (d), (iv) - (a) b. (i) - (a), (ii) - (c), (iii) - (b), (iv) - (d) c. (i) - (d), (ii) - (a), (iii) - (c), (iv) - (b) d. (i) - (b), (ii) - (d), (iii) - (a), (iv) - (c) 6. Assertion (A): Esterification is a process in which a sweet-smelling substance is produced. Reason (R): When esters react with sodium hydroxide alcohol and the sodium salt of carboxylic acid are obtained.Copyright © myCBSEguide.com. Mass distribution in any mode is strictly prohibited. 1 / 5 myCBSEguide a. Both A and R are true and R is the correct explanation of the A. b. Both A and R are true but R is not the correct explanation of the A. c. A is true but R is false. d. A is false but R is true. To practice more questions & prepare well for exams, download myCBSEguide App. It provides complete study material for CBSE, NCERT, JEE (main), NEET-UG and NDA exams. Teachers can use Examin8 App to create similar papers with their own name and logo. 7. Assertion (A): C8H8 and C4H10 are the successive members of the homologous series of methane. Reason (R): Any two successive members in a homologous series differ in their molecular formula by a -CH3 unit. a. Both A and R are true and R is the correct explanation of A. b. Both A and R are true but R is not the correct explanation of A. c. A is true but R is false. d. A is false but R is true. 8. Assertion (A): Cooking oil decolorizes bromine water. Reason (R): Cooking oil is a saturated compound. a. Both A and R are true and R is the correct explanation of A. b. Both A and R are true but R is not the correct explanation of A. c. A is true but R is false. d. A is false but R is true. 9. State True or False: i. Ketone is the functional group present in CH3COCH2CH3 . a. True b. False ii. The compound with a formula C3H6O2 is Alcohol. a. True b. False iii. Butane is a saturated hydrocarbon, an alkane, with the molecular formula C4H10 . a. True b. False 10. Fill in the blanks: a. Alkanes undergo ________ reactions. b. Valency of carbon is _______. c. The property of self combination is called ________. 11. Why is pure ethanoic acid called glacial ethanoic acid (or glacial acetic acid)? 12. Which substance is added for the denaturation of ethyl alcohol? 13. Justify the nature of physical and chemical properties of compounds of homologous series. 14. Why -CHO group cannot be present in the middle of the carbon atom chain? 15. i. Why -CHO group cannot be present in the middle of the carbon atom chain? ii. What is a homologous series? State any two characteristics of homologous series? 16. What are carboxylic acids? Give the common names, IUPAC names and structural formula of first four members of the homologous series.C