1. How many carbon atoms are present in one molecule of ethanol?
2. The isomeric pair is
3. Functional group – COOH is present in which of the given?
4. Which of the given is used to oxidise ethanol to ethanoic acid?
5. Functional group – CHO is present in which of the given?
6. Which is denatured spirit?
7. A hydrocarbon should have a minimum of how many carbon atoms to show isomerism?
8. Tertiary butanol gets oxidised with oxidising agents like alkaline KMNO₄ to
9. Ethanol reacts with sodium and forms two products. These are
10. The substance not responsible for the hardness of water is
11. Vinegar is a solution of
12. The by product of soap is
13. Which of the given represents a saponification reaction?
14. Covalent compounds
15. Which of the given is an odd compound?
16. Vinegar is a solution of
17. Which one of the given is an unsaturated hydrocarbon?
18. Which of the given can be used for the denaturation of ethyl alcohol?
19. Two neighbours of homologous series differ by
20. Soaps are formed by saponification of
21. Carbon exists in the atmosphere in the form of
22. Which of the following statements are usually correct for carbon compounds? These (a) Are good conductors of electricity. (b) Are poor conductors of electricity. (c) Have strong forces of attraction between their molecules. (d) Do not have strong forces of attraction between their molecules. A.
23. A molecule of ammonia (NH₃) has
24. Buckminsterfullerene is an allotropic form of
25. Which of the given is not an aliphatic hydrocarbon?
26. “In the given reaction, alkaline KMnO₄ acts as: CH₃ + CH₂ + OH ⟶Alkaline KMO₄ + Heat ⟶ CH₃ + COOH” A. Reducing agent B. Oxidising agent C. Catalyst D. Dehydrating agent
27. Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of
28. In which of the given compounds -OH is the functional group?
29. The soap molecule has a __ Hydrophilic head and a
30. Identify the unsaturated compounds from the following. (a) Propane (b) Propene (c) Propyne (d) Chloropropane A.
31. Complete combustion of a hydrocarbon gives
32. Which is not correct for isomers of a compound?
33. Buckminsterfullerene is an example of……………of carbon
34. Who prepared urea the first time by heating ammonium cyanate?
35. Butanone is a four-carbon compound with the functional group ______
36. Mineral acids are stronger acids than carboxylic acids because (a) Mineral acids are completely ionised (b) Carboxylic acids are completely ionised (c) Mineral acids are partially ionised (d) Carboxylic acids are partially ionised A.
37. Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e.g. hydrogen. After the formation of four bonds, carbon attains the electronic configuration of
38. Major constituent of LPG is……………
39. Which of the given does not belong to the same homologous series?
40. The name of the compound, CH₃ ─ CH₂ ─ CHO is:
41. Which of the given is a noble gas?
42. How many electrons are there in the outermost shell of carbon?
43. Which allotrope of carbon is in the form of the geodesic globe?
44. Which of the given has a triple bond?
45. Which of the given has a double bond?
46. How many single bonds are present in methane?
47. Subsequent members of homologous series differ by how many atomic mass units?
48. How many carbon atoms are present in one molecule of ethanoic acid?
49. The heteroatoms present in CH₃ ─ CH₂ ─ O ─ CH₂ ─ CH₂Cl are: (a) Oxygen (b) Carbon (c) Hydrogen (d) Chlorine
50. The first member of alkyne homologous series is: