Take your time to read instructions before taking this test.

There are 40 questions which you are to answer in 15 minutes that gives you roughly 30 seconds per question.

If you can get at least 60%, you can be rest assured that you’ll ace CHM 102 exam

In a normal exam you will be asked between 40 – 60 questions but I only arranged 40 questions

Note

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70 – 100 A

60 – 69 B

50 – 59 C

45 – 49 D

40 – 44 E

0 – 39 F

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Created on July 14, 2023 By

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CHM 102

1 / 50

1. The general reaction of the carbonyl groups?

A. electrophilic substitution

B. nucleophilic substitution

C. nucleophilic addition

D. electrophilic addition

2 / 50

2. Reacting acid anhydride with benzene will produce _____

A. ketone and carboxylic acid

B. esters,alcohol and carboxylic acid

C. the reaction would not occur because of steric hinderance

D. aldehyde,ketone and alcohol

3 / 50

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

A. Blue to brick-red

B. Brick-red to brown

C. Brick-red to blue

D. Brown to blue

4 / 50

180o bond angle is characteristic of ------ molecules
Oxidized

A. Sp3 hybridized

B. Sp hybridized

C. Sp2 hybridized

D. None

5 / 50

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

A. N2

B. CO2

C. O2

D. H2

6 / 50

RCHO stands for ----- functional group.

A. Ketone

B. Alcohol

C. Aldehyde

D. Ester

7 / 50

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

A. Phenyl methyl ketone

B. Acetophenone

C. Phenyl acetone

D. Phenyl propyl ketone

8 / 50

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

A. likely to be highly saturated

B. likely not to be reactive with iodine

C. useful in the manufacture of margarine

D. useful in the manufacture of paints

9 / 50

) [CH3Co]20 is ______

A. An anhydride

B. An ether

C. Dicarboxylic acid

D. An amide

10 / 50

10. Which of the following is a primary Amine ?

A. Triethylamine

B. 1,3 Pentane diamine

C. N-ethyl, N Methylamine

D. N-methyl phenlyl amine

11 / 50

11.

CH3COCH3 stands for ------

A. Ester

B. Aldehyde

C. Acid

D. Ketone

12 / 50

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

A. primary aldehyde + ketone

B. acid + acetone

C. alcohol + aldehydes

D. ketone + alcohol

13 / 50

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

A. hydrogen bonding

B. resonance

C. isomerism

D. nucleophilicity

14 / 50

14. phenol is regarded as an acid because _____

A. it easily releases a proton due to resonance

B. it’s corrosive to the skin

C. it’s insoluble in water

D. it’s volatile

15 / 50

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

A. Aldehydes are more stable than ketones

B. Ketones are less stable than aldehydes

C. ketones are more reactive

D. The steric hinderance of the alkyl group of ketones may affect their reactivity

16 / 50

16. Iodoform is easily recognized by?

A. it’s urine smell

B. It’s ether smell and blue colour

C. it’s ammonia smell and green colour

D. it’s medicinal smell and yellow colour

17 / 50

17. Saponification reaction is best described as _____

A. Base promoted hydrolysis reaction

B. Acid promoted hydrolysis reaction

C. Condensation reaction

D. Soap making reaction

18 / 50

18. Starch is also called the following except ____

A. Amylum

B. Pectin

C. Amylose

D. Polymer

19 / 50

19. Which of the following will be most acidic?

A. CH3.CH.CH2.COOH

B. CH3.OH

C. CH3.CH2.C.Cl2.COOH

D. CH2.CH2.CH2.COOH

20 / 50

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

A. 68 and 98) degree C

B. 68 degree C

C. 78 and 100) degree C

D. 90 degree C

21 / 50

21. Organic chemistry is the study of ?___

A. some carbon compounds

B. hydro carbon

C. non hydro carbons

D. all carbon compounds

22 / 50

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

A. hydrophobic moleculesq

B. zwitterions

C. negatively charged compounds

D. positively charged compounds

23 / 50

23.

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

A. Weakens

B. Increase

C. Decrease

D. Stabilize

24 / 50

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

A. Yeastose

B. Ketose

C. Zymase

D. Zylose

25 / 50

25.

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

A. 190.5 degrees

B. 90.5 degrees

C. 120.5degrees

D. 45.5 degrees

26 / 50

26.

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

A. Ester

B. Phenol

C. Aldehyde

D. Ketone

27 / 50

27. Which general class of compounds does amine belong?

A. Nitrile

B. Acetamide

C. Propanol amine

D. Nitro amine

28 / 50

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

A. Primary

B. Secondary and Tertiary

C. Secondary

D. Tertiary

29 / 50

29. The product of fermentation of cassava is ____

A. Alcohol

B. ketone

C. Aldehyde

D. carboxylic acid

30 / 50

30. Basic hydrolysis of any oil can produce ___

A. hydrated oil

B. oil hydrolyte

C. Soap

D. oil hydrolyte

31 / 50

31. Alcohol can be concentrated by ?____

A. by boiling the product

B. distillation of the product

C. distillation of product with benzene

D. treatment of the product with dehydrating agent and filtration

32 / 50

32. Polymerization of ethyne produces ?

A. Benzene

B. none of the above

C. Benzoic acid

D. polyethyne

33 / 50

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

A. 2,2-dimethyl-1-pentanol

B. 2,2-dimethyl-2-butanol

C. 2-methyl-1-butan-1-ol

D. 2,2-dimethyl-1-butanol

34 / 50

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

A. phenolic odour

B. solubility in water

C. solubility in acid

D. Strong fishy smell

35 / 50

35. A natural source of phenol is _____

A. vegetable oils

B. coal tar

C. fermentation of plants

D. high temperature distillation

36 / 50

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

A. Mutual incompatibility

B. Hydrogen bonding

C. Lower molecular weight

D. Ionization

37 / 50

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

A. An alcohol

B. Ammonia

C. A secondary amine

D. A primary amine

38 / 50

38. Which of the following statements is incorrect?

A. Aliphatic alcohols are less acidic than phenols

B. Alcohol can be prepared from the reduction of esters

C. Alcohol can be prepared by addition of water to double bonds

D. Methanol is also called wood alcohol

39 / 50

39.

Diethylether is correctly represented by the formula

A. CH3OCH3

B. CH3OCH2CH3

C. CH3CH2OCH2CH3

D. CH3CH2CH3CH2

40 / 50

40.

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

A. Chemical properties

B. Colour change

C. Odour change

D. Physical properties

41 / 50

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

A. ether bond

B. disulfide bond

C. hydrogen bond

D. hndrophobic bond

42 / 50

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

A. Groundnut

B. Pupuru

C. Guinea corn

D. Garri

43 / 50

43.

Identify the most acidic compound from the following options

A. C3.H7.COOH

B. Cl2.CH.COOH

C. Cl.CH2.COOH

D. C2.H5.COOH

44 / 50

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

A. Amide

B. Carbon2I

C. Thiol

D. Hydroxyl

45 / 50

45. The following are reducing sugars except ____

A. Lactose

B. Maltose

C. Glucose

D. Sucrose

46 / 50

46.

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

A. Aromatics

B. Amides

C. Esters

D. Amines

47 / 50

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

A. All

B. H.C.N

C. N.H2.OH

D. Na.BH4

48 / 50

48.

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

A. Ethanal

B. Formaldehyde

C. Methanoic acid

D. Formic acid

49 / 50

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

A. Bioenzyme

B. Polysaccharide

C. Biomass

D. Polymer

50 / 50

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

A. C6.H5.NH-OH

B. CH3.NH2.OH

C. CH2.OH

D. H2.N.OH

Your score is

The average score is 44%

FUOYE CHM 102 CBT Practice

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