FUOYE CHM 102 CBT TEST

Ace/Undergragra July 17, 2023

0 658 1 minute read

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Take your time to read instructions before taking this test.

There are 50 questions which you are to answer in 20 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

I wish you success

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Created on July 14, 2023 By

Ace/Undergragra

CHM 102

1 / 50

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

A. Phenol

B. Ketone

C. Aldehyde

D. Ester

2 / 50

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

A. 2,2-dimethyl-1-butanol

B. 2-methyl-1-butan-1-ol

C. 2,2-dimethyl-2-butanol

D. 2,2-dimethyl-1-pentanol

3 / 50

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

A. likely to be highly saturated

B. useful in the manufacture of margarine

C. likely not to be reactive with iodine

D. useful in the manufacture of paints

4 / 50

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

A. Amide

B. Carbon2I

C. Hydroxyl

D. Thiol

5 / 50

5. phenol is regarded as an acid because _____

A. it’s corrosive to the skin

B. it’s insoluble in water

C. it easily releases a proton due to resonance

D. it’s volatile

6 / 50

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

A. acid + acetone

B. primary aldehyde + ketone

C. ketone + alcohol

D. alcohol + aldehydes

7 / 50

7. 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

8 / 50

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

A. 90.5 degrees

B. 190.5 degrees

C. 45.5 degrees

D. 120.5degrees

9 / 50

Identify the most acidic compound from the following options

A. Cl2.CH.COOH

B. C2.H5.COOH

C. Cl.CH2.COOH

D. C3.H7.COOH

10 / 50

10.

) [CH3Co]20 is ______

A. An ether

B. An amide

C. Dicarboxylic acid

D. An anhydride

11 / 50

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

A. Yeastose

B. Zylose

C. Zymase

D. Ketose

12 / 50

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

A. Phenyl acetone

B. Acetophenone

C. Phenyl methyl ketone

D. Phenyl propyl ketone

13 / 50

13. A natural source of phenol is _____

A. vegetable oils

B. high temperature distillation

C. fermentation of plants

D. coal tar

14 / 50

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

A. ether bond

B. hndrophobic bond

C. hydrogen bond

D. disulfide bond

15 / 50

15.

CH3COCH3 stands for ------

A. Aldehyde

B. Ester

C. Ketone

D. Acid

16 / 50

16. Basic hydrolysis of any oil can produce ___

A. Soap

B. hydrated oil

C. oil hydrolyte

D. oil hydrolyte

17 / 50

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

A. Brown to blue

B. Brick-red to blue

C. Blue to brick-red

D. Brick-red to brown

18 / 50

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

A. 78 and 100) degree C

B. 68 degree C

C. 90 degree C

D. 68 and 98) degree C

19 / 50

19. 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

20 / 50

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

A. Ionization

B. Lower molecular weight

C. Mutual incompatibility

D. Hydrogen bonding

21 / 50

21. 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. isomerism

B. hydrogen bonding

C. nucleophilicity

D. resonance

22 / 50

22. Iodoform is easily recognized by?

A. it’s urine smell

B. it’s medicinal smell and yellow colour

C. it’s ammonia smell and green colour

D. It’s ether smell and blue colour

23 / 50

23. Which general class of compounds does amine belong?

A. Nitro amine

B. Acetamide

C. Nitrile

D. Propanol amine

24 / 50

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

A. H2

B. N2

C. O2

D. CO2

25 / 50

25. Polymerization of ethyne produces ?

A. polyethyne

B. Benzoic acid

C. none of the above

D. Benzene

26 / 50

26.

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

A. Physical properties

B. Colour change

C. Odour change

D. Chemical properties

27 / 50

27. Which of the following statements is incorrect?

A. Aliphatic alcohols are less acidic than phenols

B. Methanol is also called wood alcohol

C. Alcohol can be prepared from the reduction of esters

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

28 / 50

28. Which of the following will be most acidic?

A. CH2.CH2.CH2.COOH

B. CH3.CH2.C.Cl2.COOH

C. CH3.OH

D. CH3.CH.CH2.COOH

29 / 50

29. Organic chemistry is the study of ?___

A. all carbon compounds

B. non hydro carbons

C. some carbon compounds

D. hydro carbon

30 / 50

30. Saponification reaction is best described as _____

A. Soap making reaction

B. Condensation reaction

C. Acid promoted hydrolysis reaction

D. Base promoted hydrolysis reaction

31 / 50

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

A. negatively charged compounds

B. zwitterions

C. hydrophobic moleculesq

D. positively charged compounds

32 / 50

32.

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

A. Amines

B. Amides

C. Esters

D. Aromatics

33 / 50

33.

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

A. Stabilize

B. Decrease

C. Weakens

D. Increase

34 / 50

34.

RCHO stands for ----- functional group.

A. Alcohol

B. Ketone

C. Ester

D. Aldehyde

35 / 50

35. The general reaction of the carbonyl groups?

A. electrophilic addition

B. nucleophilic addition

C. nucleophilic substitution

D. electrophilic substitution

36 / 50

36.

Diethylether is correctly represented by the formula

A. CH3CH2OCH2CH3

B. CH3CH2CH3CH2

C. CH3OCH2CH3

D. CH3OCH3

37 / 50

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

A. CH3.NH2.OH

B. CH2.OH

C. H2.N.OH

D. C6.H5.NH-OH

38 / 50

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

A. Secondary

B. Secondary and Tertiary

C. Tertiary

D. Primary

39 / 50

39.

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

A. Formaldehyde

B. Formic acid

C. Methanoic acid

D. Ethanal

40 / 50

40. 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

41 / 50

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

A. Garri

B. Groundnut

C. Guinea corn

D. Pupuru

42 / 50

42.

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

A. Sp2 hybridized

B. None

C. Sp3 hybridized

D. Sp hybridized

43 / 50

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

A. Polysaccharide

B. Biomass

C. Bioenzyme

D. Polymer

44 / 50

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

A. N.H2.OH

B. All

C. H.C.N

D. Na.BH4

45 / 50

45. Reacting acid anhydride with benzene will produce _____

A. aldehyde,ketone and alcohol

B. the reaction would not occur because of steric hinderance

C. ketone and carboxylic acid

D. esters,alcohol and carboxylic acid

46 / 50

46. The following are reducing sugars except ____

A. Sucrose

B. Glucose

C. Lactose

D. Maltose

47 / 50

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

A. Ketones are less stable than aldehydes

B. ketones are more reactive

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

D. Aldehydes are more stable than ketones

48 / 50

48. Alcohol can be concentrated by ?____

A. distillation of product with benzene

B. distillation of the product

C. by boiling the product

D. treatment of the product with dehydrating agent and filtration

49 / 50

49. Starch is also called the following except ____

A. Polymer

B. Pectin

C. Amylose

D. Amylum

50 / 50

50. The product of fermentation of cassava is ____

A. Aldehyde

B. carboxylic acid

C. Alcohol

D. ketone

Your score is

The average score is 47%

Please do well to drop a comment if this has really helped you. Thanks❤️

Ace/Undergragra July 17, 2023

0 658 1 minute read

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