FUOYE CHM 102 CBT TEST

Ace/Undergragra July 17, 2023

0 657 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

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

A. Hydrogen bonding

B. Lower molecular weight

C. Mutual incompatibility

D. Ionization

2 / 50

2. Which general class of compounds does amine belong?

A. Nitrile

B. Nitro amine

C. Propanol amine

D. Acetamide

3 / 50

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

A. positively charged compounds

B. zwitterions

C. hydrophobic moleculesq

D. negatively charged compounds

4 / 50

4. Which of the following is a primary Amine ?

A. N-ethyl, N Methylamine

B. 1,3 Pentane diamine

C. N-methyl phenlyl amine

D. Triethylamine

5 / 50

5. A natural source of phenol is _____

A. vegetable oils

B. high temperature distillation

C. coal tar

D. fermentation of plants

6 / 50

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

A. ether bond

B. disulfide bond

C. hndrophobic bond

D. hydrogen bond

7 / 50

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

A. Weakens

B. Stabilize

C. Decrease

D. Increase

8 / 50

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

A. 120.5degrees

B. 45.5 degrees

C. 90.5 degrees

D. 190.5 degrees

9 / 50

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

A. None

B. Sp hybridized

C. Sp3 hybridized

D. Sp2 hybridized

10 / 50

10. 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

11 / 50

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

A. Polymer

B. Bioenzyme

C. Polysaccharide

D. Biomass

12 / 50

12.

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

A. Ester

B. Aldehyde

C. Ketone

D. Phenol

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. resonance

B. nucleophilicity

C. hydrogen bonding

D. isomerism

14 / 50

14. Iodoform is easily recognized by?

A. it’s medicinal smell and yellow colour

B. It’s ether smell and blue colour

C. it’s urine smell

D. it’s ammonia smell and green colour

15 / 50

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

A. 68 degree C

B. 90 degree C

C. 68 and 98) degree C

D. 78 and 100) degree C

16 / 50

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

A. Strong fishy smell

B. solubility in water

C. phenolic odour

D. solubility in acid

17 / 50

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

A. All

B. Na.BH4

C. N.H2.OH

D. H.C.N

18 / 50

18.

Identify the most acidic compound from the following options

A. C2.H5.COOH

B. Cl2.CH.COOH

C. C3.H7.COOH

D. Cl.CH2.COOH

19 / 50

19.

RCHO stands for ----- functional group.

A. Alcohol

B. Ketone

C. Aldehyde

D. Ester

20 / 50

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

A. useful in the manufacture of paints

B. useful in the manufacture of margarine

C. likely not to be reactive with iodine

D. likely to be highly saturated

21 / 50

21.

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

A. Chemical properties

B. Physical properties

C. Colour change

D. Odour change

22 / 50

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

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

B. 2,2-dimethyl-1-pentanol

C. 2,2-dimethyl-1-butanol

D. 2,2-dimethyl-2-butanol

23 / 50

23.

CH3COCH3 stands for ------

A. Ketone

B. Acid

C. Aldehyde

D. Ester

24 / 50

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

A. Pupuru

B. Garri

C. Guinea corn

D. Groundnut

25 / 50

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

A. primary aldehyde + ketone

B. ketone + alcohol

C. acid + acetone

D. alcohol + aldehydes

26 / 50

26. Saponification reaction is best described as _____

A. Soap making reaction

B. Condensation reaction

C. Base promoted hydrolysis reaction

D. Acid promoted hydrolysis reaction

27 / 50

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

A. A primary amine

B. Ammonia

C. A secondary amine

D. An alcohol

28 / 50

28.

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

A. Methanoic acid

B. Ethanal

C. Formic acid

D. Formaldehyde

29 / 50

29. Which of the following will be most acidic?

A. CH3.CH2.C.Cl2.COOH

B. CH2.CH2.CH2.COOH

C. CH3.OH

D. CH3.CH.CH2.COOH

30 / 50

30.

Diethylether is correctly represented by the formula

A. CH3CH2CH3CH2

B. CH3CH2OCH2CH3

C. CH3OCH2CH3

D. CH3OCH3

31 / 50

31. phenol is regarded as an acid because _____

A. it easily releases a proton due to resonance

B. it’s insoluble in water

C. it’s volatile

D. it’s corrosive to the skin

32 / 50

32. Starch is also called the following except ____

A. Amylum

B. Pectin

C. Polymer

D. Amylose

33 / 50

33.

) [CH3Co]20 is ______

A. Dicarboxylic acid

B. An amide

C. An anhydride

D. An ether

34 / 50

34. Basic hydrolysis of any oil can produce ___

A. Soap

B. oil hydrolyte

C. hydrated oil

D. oil hydrolyte

35 / 50

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

A. Phenyl acetone

B. Phenyl methyl ketone

C. Phenyl propyl ketone

D. Acetophenone

36 / 50

36. Organic chemistry is the study of ?___

A. some carbon compounds

B. non hydro carbons

C. all carbon compounds

D. hydro carbon

37 / 50

37. Which of the following statements is incorrect?

A. Alcohol can be prepared from the reduction of esters

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

C. Aliphatic alcohols are less acidic than phenols

D. Methanol is also called wood alcohol

38 / 50

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

A. Thiol

B. Amide

C. Hydroxyl

D. Carbon2I

39 / 50

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

A. H2.N.OH

B. C6.H5.NH-OH

C. CH2.OH

D. CH3.NH2.OH

40 / 50

40. The product of fermentation of cassava is ____

A. ketone

B. carboxylic acid

C. Aldehyde

D. Alcohol

41 / 50

41. Alcohol can be concentrated by ?____

A. treatment of the product with dehydrating agent and filtration

B. distillation of product with benzene

C. by boiling the product

D. distillation of the product

42 / 50

42. The following are reducing sugars except ____

A. Sucrose

B. Maltose

C. Glucose

D. Lactose

43 / 50

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

A. Zymase

B. Zylose

C. Ketose

D. Yeastose

44 / 50

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

A. Brick-red to blue

B. Brick-red to brown

C. Brown to blue

D. Blue to brick-red

45 / 50

45.

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

A. Esters

B. Aromatics

C. Amides

D. Amines

46 / 50

46. 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 less stable than aldehydes

C. Aldehydes are more stable than ketones

D. ketones are more reactive

47 / 50

47. Polymerization of ethyne produces ?

A. none of the above

B. Benzoic acid

C. polyethyne

D. Benzene

48 / 50

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

A. Tertiary

B. Secondary

C. Primary

D. Secondary and Tertiary

49 / 50

49. The general reaction of the carbonyl groups?

A. nucleophilic addition

B. electrophilic addition

C. electrophilic substitution

D. nucleophilic substitution

50 / 50

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

A. O2

B. N2

C. CO2

D. H2

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

0 657 1 minute read

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