FUOYE CHM 102 CBT Practice : Undergragra

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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

Do not be in a hurry to answer the questions
Do not waste time on a question you don’t know
Move as fast as possible and starting with questions that don’t have calculation first to save time
Always crosscheck
Don’t be in a hurry to submit, you are not in a competition
Don’t be scared. Getting an A is easy
Don’t be over confident, you can end up a D, E or F. Calm your blood, no be only you sabi book
Please do well to use our comment box incase there’s a message you want to pass to us

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

Aruwaji Philip

CHM 102

1 / 50

1. Which general class of compounds does amine belong?

A. Acetamide

B. Propanol amine

C. Nitrile

D. Nitro amine

2 / 50

2. The general reaction of the carbonyl groups?

A. nucleophilic substitution

B. electrophilic addition

C. nucleophilic addition

D. electrophilic substitution

3 / 50

3. CH3COCH3 stands for ------

A. Ester

B. Acid

C. Ketone

D. Aldehyde

4 / 50

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

A. Primary

B. Secondary and Tertiary

C. Tertiary

D. Secondary

5 / 50

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

A. Ammonia

B. A secondary amine

C. An alcohol

D. A primary amine

6 / 50

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

A. Pupuru

B. Guinea corn

C. Groundnut

D. Garri

7 / 50

7. Saponification reaction is best described as _____

A. Soap making reaction

B. Acid promoted hydrolysis reaction

C. Condensation reaction

D. Base promoted hydrolysis reaction

8 / 50

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

A. Brick-red to blue

B. Brown to blue

C. Blue to brick-red

D. Brick-red to brown

9 / 50

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

A. Weakens

B. Increase

C. Decrease

D. Stabilize

10 / 50

10. Basic hydrolysis of any oil can produce ___

A. Soap

B. oil hydrolyte

C. hydrated oil

D. oil hydrolyte

11 / 50

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

A. 2-methyl-1-butan-1-ol

B. 2,2-dimethyl-2-butanol

C. 2,2-dimethyl-1-butanol

D. 2,2-dimethyl-1-pentanol

12 / 50

12. RCHO stands for ----- functional group.

A. Aldehyde

B. Ketone

C. Alcohol

D. Ester

13 / 50

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

A. Formic acid

B. Formaldehyde

C. Ethanal

D. Methanoic acid

14 / 50

14.

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

15 / 50

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

A. Hydroxyl

B. Amide

C. Thiol

D. Carbon2I

16 / 50

16. Ar-OH stands for ------- functional group

A. Phenol

B. Ketone

C. Ester

D. Aldehyde

17 / 50

17. Reacting acid anhydride with benzene will produce _____

A. esters,alcohol and carboxylic acid

B. ketone and carboxylic acid

C. aldehyde,ketone and alcohol

D. the reaction would not occur because of steric hinderance

18 / 50

18. The following are reducing sugars except ____

A. Sucrose

B. Lactose

C. Glucose

D. Maltose

19 / 50

19. The product of fermentation of cassava is ____

A. carboxylic acid

B. ketone

C. Alcohol

D. Aldehyde

20 / 50

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

A. CO2

B. O2

C. N2

D. H2

21 / 50

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

A. primary aldehyde + ketone

B. acid + acetone

C. ketone + alcohol

D. alcohol + aldehydes

22 / 50

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

A. Phenyl methyl ketone

B. Acetophenone

C. Phenyl propyl ketone

D. Phenyl acetone

23 / 50

23. Which of the following will be most acidic?

A. CH3.OH

B. CH2.CH2.CH2.COOH

C. CH3.CH.CH2.COOH

D. CH3.CH2.C.Cl2.COOH

24 / 50

24.

) [CH3Co]20 is ______

A. An anhydride

B. An ether

C. An amide

D. Dicarboxylic acid

25 / 50

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

A. C6.H5.NH-OH

B. CH2.OH

C. CH3.NH2.OH

D. H2.N.OH

26 / 50

26. Polymerization of ethyne produces ?

A. none of the above

B. Benzene

C. polyethyne

D. Benzoic acid

27 / 50

27. 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. resonance

B. nucleophilicity

C. isomerism

D. hydrogen bonding

28 / 50

28. Starch is also called the following except ____

A. Amylose

B. Polymer

C. Amylum

D. Pectin

29 / 50

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

A. Hydrogen bonding

B. Mutual incompatibility

C. Ionization

D. Lower molecular weight

30 / 50

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

A. useful in the manufacture of paints

B. likely not to be reactive with iodine

C. likely to be highly saturated

D. useful in the manufacture of margarine

31 / 50

31. Organic chemistry is the study of ?___

A. non hydro carbons

B. some carbon compounds

C. hydro carbon

D. all carbon compounds

32 / 50

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

A. All

B. H.C.N

C. Na.BH4

D. N.H2.OH

33 / 50

33. phenol is regarded as an acid because _____

A. it’s corrosive to the skin

B. it easily releases a proton due to resonance

C. it’s insoluble in water

D. it’s volatile

34 / 50

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

A. Colour change

B. Odour change

C. Physical properties

D. Chemical properties

35 / 50

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

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

B. ketones are more reactive

C. Aldehydes are more stable than ketones

D. Ketones are less stable than aldehydes

36 / 50

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

A. Strong fishy smell

B. solubility in acid

C. solubility in water

D. phenolic odour

37 / 50

37. Alcohol can be concentrated by ?____

A. distillation of product with benzene

B. by boiling the product

C. distillation of the product

D. treatment of the product with dehydrating agent and filtration

38 / 50

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

A. 120.5degrees

B. 90.5 degrees

C. 190.5 degrees

D. 45.5 degrees

39 / 50

39. Diethylether is correctly represented by the formula

A. CH3CH2OCH2CH3

B. CH3OCH3

C. CH3OCH2CH3

D. CH3CH2CH3CH2

40 / 50

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

A. 78 and 100) degree C

B. 68 and 98) degree C

C. 90 degree C

D. 68 degree C

41 / 50

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

A. zwitterions

B. positively charged compounds

C. negatively charged compounds

D. hydrophobic moleculesq

42 / 50

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

A. Zymase

B. Zylose

C. Ketose

D. Yeastose

43 / 50

43. Which of the following is a primary Amine ?

A. N-methyl phenlyl amine

B. Triethylamine

C. 1,3 Pentane diamine

D. N-ethyl, N Methylamine

44 / 50

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

A. disulfide bond

B. ether bond

C. hydrogen bond

D. hndrophobic bond

45 / 50

45. Which of the following statements is incorrect?

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

B. Methanol is also called wood alcohol

C. Alcohol can be prepared from the reduction of esters

D. Aliphatic alcohols are less acidic than phenols

46 / 50

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

A. Aromatics

B. Amines

C. Amides

D. Esters

47 / 50

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

A. Biomass

B. Bioenzyme

C. Polysaccharide

D. Polymer

48 / 50

48. A natural source of phenol is _____

A. fermentation of plants

B. coal tar

C. vegetable oils

D. high temperature distillation

49 / 50

49. Iodoform is easily recognized by?

A. it’s urine smell

B. it’s ammonia smell and green colour

C. it’s medicinal smell and yellow colour

D. It’s ether smell and blue colour

50 / 50

50. 180o bond angle is characteristic of ------ molecules
Oxidized

A. None

B. Sp hybridized

C. Sp3 hybridized

D. Sp2 hybridized

Your score is

The average score is 44%

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4 Comments

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Michael Godwin

1 year ago

34.) Biomass can also be used to describe a Cellulose; the answer is BIOENZYMES

Author

Reply to Michael Godwin

Noted

Evbotokhai John

4 months ago

The easiest way to recognise phenylamine is by solubility in acid not by the strong fishy smell

3 months ago

Reply to Evbotokhai John

Please kindly dm.

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