FUOYE CHM 102 CBT TEST

Ace/Undergragra July 17, 2023

0 649 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

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

A. Esters

B. Aromatics

C. Amides

D. Amines

2 / 50

2. 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

3 / 50

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

A. solubility in acid

B. solubility in water

C. Strong fishy smell

D. phenolic odour

4 / 50

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

A. ketones are more reactive

B. Aldehydes are more stable than ketones

C. Ketones are less stable than aldehydes

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

5 / 50

5. 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

6 / 50

6. Basic hydrolysis of any oil can produce ___

A. oil hydrolyte

B. Soap

C. hydrated oil

D. oil hydrolyte

7 / 50

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

A. Hydrogen bonding

B. Ionization

C. Mutual incompatibility

D. Lower molecular weight

8 / 50

8. A natural source of phenol is _____

A. vegetable oils

B. coal tar

C. fermentation of plants

D. high temperature distillation

9 / 50

9. The following are reducing sugars except ____

A. Glucose

B. Sucrose

C. Lactose

D. Maltose

10 / 50

10.

Diethylether is correctly represented by the formula

A. CH3CH2OCH2CH3

B. CH3OCH3

C. CH3OCH2CH3

D. CH3CH2CH3CH2

11 / 50

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

A. Phenyl propyl ketone

B. Acetophenone

C. Phenyl acetone

D. Phenyl methyl ketone

12 / 50

12. Alcohol can be concentrated by ?____

A. by boiling the product

B. distillation of product with benzene

C. treatment of the product with dehydrating agent and filtration

D. distillation of the product

13 / 50

13. The product of fermentation of cassava is ____

A. Aldehyde

B. carboxylic acid

C. Alcohol

D. ketone

14 / 50

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

A. Brick-red to brown

B. Brown to blue

C. Blue to brick-red

D. Brick-red to blue

15 / 50

15.

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

A. Ethanal

B. Methanoic acid

C. Formic acid

D. Formaldehyde

16 / 50

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

A. Groundnut

B. Garri

C. Pupuru

D. Guinea corn

17 / 50

17.

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

A. Ketone

B. Ester

C. Aldehyde

D. Phenol

18 / 50

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

A. Ketose

B. Yeastose

C. Zylose

D. Zymase

19 / 50

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

A. 68 and 98) degree C

B. 68 degree C

C. 90 degree C

D. 78 and 100) degree C

20 / 50

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

A. 2,2-dimethyl-2-butanol

B. 2,2-dimethyl-1-pentanol

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

D. 2,2-dimethyl-1-butanol

21 / 50

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

A. hndrophobic bond

B. hydrogen bond

C. disulfide bond

D. ether bond

22 / 50

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

A. N2

B. O2

C. CO2

D. H2

23 / 50

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

A. Bioenzyme

B. Polysaccharide

C. Biomass

D. Polymer

24 / 50

24. Starch is also called the following except ____

A. Pectin

B. Amylose

C. Amylum

D. Polymer

25 / 50

25. Organic chemistry is the study of ?___

A. all carbon compounds

B. non hydro carbons

C. hydro carbon

D. some carbon compounds

26 / 50

26. Iodoform is easily recognized by?

A. it’s ammonia smell and green colour

B. it’s urine smell

C. it’s medicinal smell and yellow colour

D. It’s ether smell and blue colour

27 / 50

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

A. All

B. H.C.N

C. Na.BH4

D. N.H2.OH

28 / 50

28.

Identify the most acidic compound from the following options

A. C3.H7.COOH

B. Cl2.CH.COOH

C. C2.H5.COOH

D. Cl.CH2.COOH

29 / 50

29.

RCHO stands for ----- functional group.

A. Aldehyde

B. Ester

C. Alcohol

D. Ketone

30 / 50

30.

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

A. None

B. Sp2 hybridized

C. Sp hybridized

D. Sp3 hybridized

31 / 50

31. Polymerization of ethyne produces ?

A. Benzoic acid

B. Benzene

C. none of the above

D. polyethyne

32 / 50

32. 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. nucleophilicity

C. resonance

D. hydrogen bonding

33 / 50

33. Saponification reaction is best described as _____

A. Soap making reaction

B. Base promoted hydrolysis reaction

C. Condensation reaction

D. Acid promoted hydrolysis reaction

34 / 50

34.

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

A. Decrease

B. Stabilize

C. Increase

D. Weakens

35 / 50

35. Which general class of compounds does amine belong?

A. Acetamide

B. Propanol amine

C. Nitro amine

D. Nitrile

36 / 50

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

A. Secondary

B. Tertiary

C. Secondary and Tertiary

D. Primary

37 / 50

37. 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

38 / 50

38. The general reaction of the carbonyl groups?

A. electrophilic substitution

B. nucleophilic substitution

C. nucleophilic addition

D. electrophilic addition

39 / 50

39.

CH3COCH3 stands for ------

A. Ketone

B. Aldehyde

C. Ester

D. Acid

40 / 50

40.

) [CH3Co]20 is ______

A. An ether

B. An amide

C. An anhydride

D. Dicarboxylic acid

41 / 50

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

A. likely to be highly saturated

B. useful in the manufacture of paints

C. useful in the manufacture of margarine

D. likely not to be reactive with iodine

42 / 50

42. phenol is regarded as an acid because _____

A. it’s volatile

B. it’s corrosive to the skin

C. it’s insoluble in water

D. it easily releases a proton due to resonance

43 / 50

43.

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

A. 45.5 degrees

B. 120.5degrees

C. 190.5 degrees

D. 90.5 degrees

44 / 50

44. Which of the following is a primary Amine ?

A. N-methyl phenlyl amine

B. 1,3 Pentane diamine

C. Triethylamine

D. N-ethyl, N Methylamine

45 / 50

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

A. alcohol + aldehydes

B. primary aldehyde + ketone

C. acid + acetone

D. ketone + alcohol

46 / 50

46.

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

A. Chemical properties

B. Colour change

C. Odour change

D. Physical properties

47 / 50

47. Reacting acid anhydride with benzene will produce _____

A. ketone and carboxylic acid

B. the reaction would not occur because of steric hinderance

C. esters,alcohol and carboxylic acid

D. aldehyde,ketone and alcohol

48 / 50

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

A. negatively charged compounds

B. zwitterions

C. positively charged compounds

D. hydrophobic moleculesq

49 / 50

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

A. Carbon2I

B. Thiol

C. Amide

D. Hydroxyl

50 / 50

50. Which of the following statements is incorrect?

A. Aliphatic alcohols are less acidic than phenols

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

C. Alcohol can be prepared from the reduction of esters

D. Methanol is also called wood alcohol

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

0 649 1 minute read

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