FUOYE CHM 102 CBT TEST

Ace/Undergragra July 17, 2023

0 661 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

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

A. Increase

B. Stabilize

C. Weakens

D. Decrease

2 / 50

Identify the most acidic compound from the following options

A. Cl2.CH.COOH

B. Cl.CH2.COOH

C. C3.H7.COOH

D. C2.H5.COOH

3 / 50

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

A. Methanoic acid

B. Formaldehyde

C. Ethanal

D. Formic acid

4 / 50

4. Reacting acid anhydride with benzene will produce _____

A. ketone and carboxylic acid

B. esters,alcohol and carboxylic acid

C. aldehyde,ketone and alcohol

D. the reaction would not occur because of steric hinderance

5 / 50

) [CH3Co]20 is ______

A. An amide

B. Dicarboxylic acid

C. An ether

D. An anhydride

6 / 50

6. Polymerization of ethyne produces ?

A. polyethyne

B. Benzoic acid

C. Benzene

D. none of the above

7 / 50

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

A. Ketose

B. Zymase

C. Zylose

D. Yeastose

8 / 50

8. 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

9 / 50

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

A. 45.5 degrees

B. 90.5 degrees

C. 190.5 degrees

D. 120.5degrees

10 / 50

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

A. hydrogen bond

B. hndrophobic bond

C. ether bond

D. disulfide bond

11 / 50

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

A. H.C.N

B. N.H2.OH

C. Na.BH4

D. All

12 / 50

12.

CH3COCH3 stands for ------

A. Ketone

B. Aldehyde

C. Acid

D. Ester

13 / 50

13. The general reaction of the carbonyl groups?

A. electrophilic substitution

B. nucleophilic addition

C. nucleophilic substitution

D. electrophilic addition

14 / 50

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

A. Primary

B. Secondary and Tertiary

C. Tertiary

D. Secondary

15 / 50

15. Organic chemistry is the study of ?___

A. some carbon compounds

B. all carbon compounds

C. hydro carbon

D. non hydro carbons

16 / 50

16.

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

A. Aldehyde

B. Phenol

C. Ketone

D. Ester

17 / 50

17. Which of the following is a primary Amine ?

A. Triethylamine

B. N-ethyl, N Methylamine

C. 1,3 Pentane diamine

D. N-methyl phenlyl amine

18 / 50

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

A. A secondary amine

B. An alcohol

C. Ammonia

D. A primary amine

19 / 50

19. The product of fermentation of cassava is ____

A. Alcohol

B. carboxylic acid

C. Aldehyde

D. ketone

20 / 50

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

A. Brown to blue

B. Brick-red to blue

C. Brick-red to brown

D. Blue to brick-red

21 / 50

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

A. Amide

B. Carbon2I

C. Thiol

D. Hydroxyl

22 / 50

22. Basic hydrolysis of any oil can produce ___

A. oil hydrolyte

B. Soap

C. hydrated oil

D. oil hydrolyte

23 / 50

23. Which of the following will be most acidic?

A. CH3.CH2.C.Cl2.COOH

B. CH3.OH

C. CH2.CH2.CH2.COOH

D. CH3.CH.CH2.COOH

24 / 50

24. 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. hydrogen bonding

D. resonance

25 / 50

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

A. Aldehydes are more stable than ketones

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

C. ketones are more reactive

D. Ketones are less stable than aldehydes

26 / 50

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

A. positively charged compounds

B. negatively charged compounds

C. zwitterions

D. hydrophobic moleculesq

27 / 50

27.

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

A. Odour change

B. Physical properties

C. Colour change

D. Chemical properties

28 / 50

28.

Diethylether is correctly represented by the formula

A. CH3OCH2CH3

B. CH3OCH3

C. CH3CH2OCH2CH3

D. CH3CH2CH3CH2

29 / 50

29. 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

30 / 50

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

A. 2,2-dimethyl-1-pentanol

B. 2,2-dimethyl-2-butanol

C. 2,2-dimethyl-1-butanol

D. 2-methyl-1-butan-1-ol

31 / 50

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

A. Phenyl methyl ketone

B. Phenyl propyl ketone

C. Acetophenone

D. Phenyl acetone

32 / 50

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

A. Lower molecular weight

B. Hydrogen bonding

C. Mutual incompatibility

D. Ionization

33 / 50

33. Starch is also called the following except ____

A. Pectin

B. Amylose

C. Polymer

D. Amylum

34 / 50

34.

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

A. Aromatics

B. Esters

C. Amides

D. Amines

35 / 50

35. Alcohol can be concentrated by ?____

A. distillation of product with benzene

B. treatment of the product with dehydrating agent and filtration

C. by boiling the product

D. distillation of the product

36 / 50

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

A. solubility in water

B. Strong fishy smell

C. solubility in acid

D. phenolic odour

37 / 50

37. A natural source of phenol is _____

A. high temperature distillation

B. vegetable oils

C. coal tar

D. fermentation of plants

38 / 50

38.

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

A. Sp2 hybridized

B. Sp3 hybridized

C. None

D. Sp hybridized

39 / 50

39. 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

40 / 50

40. Saponification reaction is best described as _____

A. Acid promoted hydrolysis reaction

B. Condensation reaction

C. Base promoted hydrolysis reaction

D. Soap making reaction

41 / 50

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

A. CH2.OH

B. H2.N.OH

C. C6.H5.NH-OH

D. CH3.NH2.OH

42 / 50

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

A. 90 degree C

B. 68 degree C

C. 68 and 98) degree C

D. 78 and 100) degree C

43 / 50

43. phenol is regarded as an acid because _____

A. it’s corrosive to the skin

B. it’s insoluble in water

C. it’s volatile

D. it easily releases a proton due to resonance

44 / 50

44. Which general class of compounds does amine belong?

A. Propanol amine

B. Acetamide

C. Nitrile

D. Nitro amine

45 / 50

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

A. CO2

B. O2

C. H2

D. N2

46 / 50

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

A. acid + acetone

B. alcohol + aldehydes

C. primary aldehyde + ketone

D. ketone + alcohol

47 / 50

47. The following are reducing sugars except ____

A. Glucose

B. Sucrose

C. Maltose

D. Lactose

48 / 50

48.

RCHO stands for ----- functional group.

A. Ester

B. Alcohol

C. Ketone

D. Aldehyde

49 / 50

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

A. Guinea corn

B. Pupuru

C. Groundnut

D. Garri

50 / 50

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

A. Biomass

B. Polysaccharide

C. Bioenzyme

D. Polymer

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

0 661 1 minute read

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