FUOYE CHM 102 CBT TEST

1.

In the hybrids orbitals, as the s character increase, bond length -------

2. The general reaction of the carbonyl groups?

3. phenol is regarded as an acid because _____

4. Beside peptide bond,what other covalent bonds are commonly found in peptides ?

5. The enzyme responsible for fermentation of bread in yeast is ?

6.

7.

RCHO stands for ----- functional group.

8. Basic hydrolysis of any oil can produce ___

9. In a neutral solution,most amino acids exist as ?___

10. The boiling point of tertiary butanol is 65degreeC whereas that of normal butanol is 88degreeC, the difference in there b.p is due to ___

11. An equilibrium mixture of ethanol and water boils at?

12. The following are reducing sugars except ____

13. Iodoform is easily recognized by?

14. Which of the following will be most acidic?

15. An oil sample high in 9,12,15 octadecentrienic acid _____

16. Polymerization of ethyne produces ?

17. Which of these functional group Is not found in the structure of urea ?

18.

Ar-OH stands for ------- functional group

19.

Diethylether is correctly represented by the formula

20. Which general class of compounds does amine belong?

21. Denaturation involves the loss of what type of structure?

22. Alcohol can be concentrated by ?____

23. Which pair of reactants below will react to produce an acetal ?

24. Ketones are less susceptible to nucleophilic attack than aldehydes because ____?

25. Reacting acid anhydride with benzene will produce _____

26. Which of the following is a primary Amine ?

27. Starch is also called the following except ____

28. CH3.COOH has a greater miscibility with water than CH3.CH3-CH2-COOH. The reason is due to ?___

29.

CH3COCH3 stands for ------

30.

A functional group in a molecule exhibits characteristic ------

31.

32. The following will turn blue black with iodine except ____

33. The product of fermentation of cassava is ____

34. In order to  produce a primary amide,an acid chloride should be treated with ___

35. The easiest way to recognize phenylamine in the laboratory is ___

36. Which of the following statements is incorrect?

37. The following terms can be used to describe cellulose except ____

38. The gas produced when sodium metal is dropped in ethanol _____

39. The reaction of benzene with propanoyl chloride in the presence of Aluminum chloride will yeild _____

40. A positive test to Benedict’s reagent is indicated by ___

41.

Ethane is sp3 hybridized molecules and has ---- bond angle

42. Organic chemistry is the study of ?___

43. A natural source of phenol is _____

44.

HCHO is an organic compound popularly known as ------

45. Which of the following is the formula for Hydroxylamine ?

46.

180o bond angle is characteristic of ------ moleculesOxidized

47. Saponification reaction is best described as _____

48.

RNH2 stands for class of compound called --------

49. which of the following can be used to elongate a sugar ?

50. CH3CH2CH2.C(CH3)2.OH is ?