FUOYE CHM 102 CBT TEST

Ace/Undergragra July 17, 2023

0 470 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

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

A. 90.5 degrees

B. 120.5degrees

C. 190.5 degrees

D. 45.5 degrees

2 / 50

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

A. 2,2-dimethyl-2-butanol

B. 2,2-dimethyl-1-butanol

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

D. 2,2-dimethyl-1-pentanol

3 / 50

3. Starch is also called the following except ____

A. Polymer

B. Amylose

C. Pectin

D. Amylum

4 / 50

4. The following are reducing sugars except ____

A. Lactose

B. Glucose

C. Maltose

D. Sucrose

5 / 50

5. Which general class of compounds does amine belong?

A. Nitro amine

B. Nitrile

C. Acetamide

D. Propanol amine

6 / 50

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

A. Sp hybridized

B. Sp2 hybridized

C. Sp3 hybridized

D. None

7 / 50

7. Iodoform is easily recognized by?

See also FMS 102 CBT PRACTICE TEST

A. It’s ether smell and blue colour

B. it’s medicinal smell and yellow colour

C. it’s urine smell

D. it’s ammonia smell and green colour

8 / 50

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

A. primary aldehyde + ketone

B. alcohol + aldehydes

C. ketone + alcohol

D. acid + acetone

9 / 50

9. The product of fermentation of cassava is ____

A. Alcohol

B. Aldehyde

C. ketone

D. carboxylic acid

10 / 50

10. Which of the following will be most acidic?

A. CH2.CH2.CH2.COOH

B. CH3.CH.CH2.COOH

C. CH3.CH2.C.Cl2.COOH

D. CH3.OH

11 / 50

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

A. Amide

B. Hydroxyl

C. Thiol

D. Carbon2I

12 / 50

12.

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

A. Increase

B. Weakens

C. Decrease

D. Stabilize

13 / 50

13.

CH3COCH3 stands for ------

A. Ketone

B. Ester

C. Aldehyde

D. Acid

14 / 50

14.

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

A. Colour change

B. Chemical properties

C. Odour change

D. Physical properties

15 / 50

15.

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

16 / 50

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

A. negatively charged compounds

B. positively charged compounds

C. hydrophobic moleculesq

D. zwitterions

17 / 50

17. Basic hydrolysis of any oil can produce ___

A. oil hydrolyte

B. Soap

C. hydrated oil

D. oil hydrolyte

18 / 50

18. Reacting acid anhydride with benzene will produce _____

A. esters,alcohol and carboxylic acid

B. aldehyde,ketone and alcohol

C. ketone and carboxylic acid

D. the reaction would not occur because of steric hinderance

19 / 50

19.

RCHO stands for ----- functional group.

A. Ester

B. Alcohol

C. Ketone

D. Aldehyde

20 / 50

20.

) [CH3Co]20 is ______

A. An amide

B. Dicarboxylic acid

C. An anhydride

D. An ether

21 / 50

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

A. H.C.N

B. All

C. Na.BH4

D. N.H2.OH

22 / 50

22. Which of the following is a primary Amine ?

A. N-methyl phenlyl amine

B. N-ethyl, N Methylamine

C. 1,3 Pentane diamine

D. Triethylamine

23 / 50

23. Polymerization of ethyne produces ?

A. Benzene

B. polyethyne

C. Benzoic acid

D. none of the above

24 / 50

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

A. Bioenzyme

B. Polysaccharide

C. Polymer

D. Biomass

25 / 50

25. 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

26 / 50

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

A. Aldehydes are more stable than ketones

B. ketones are more reactive

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

D. Ketones are less stable than aldehydes

27 / 50

27.

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

A. Formaldehyde

B. Formic acid

C. Methanoic acid

D. Ethanal

28 / 50

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

A. Zymase

B. Zylose

C. Ketose

D. Yeastose

29 / 50

29. 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

30 / 50

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

A. Mutual incompatibility

B. Lower molecular weight

C. Ionization

D. Hydrogen bonding

31 / 50

31.

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

A. Amides

B. Esters

C. Amines

D. Aromatics

32 / 50

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

A. 68 degree C

B. 68 and 98) degree C

C. 90 degree C

D. 78 and 100) degree C

33 / 50

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

A. N2

B. H2

C. CO2

D. O2

34 / 50

34. phenol is regarded as an acid because _____

A. it’s corrosive to the skin

B. it’s volatile

C. it easily releases a proton due to resonance

D. it’s insoluble in water

35 / 50

35. Saponification reaction is best described as _____

A. Acid promoted hydrolysis reaction

B. Base promoted hydrolysis reaction

C. Soap making reaction

D. Condensation reaction

36 / 50

36. Which of the following statements is incorrect?

A. Methanol is also called wood alcohol

B. Aliphatic alcohols are less acidic than phenols

C. Alcohol can be prepared from the reduction of esters

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

37 / 50

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

A. disulfide bond

B. ether bond

C. hndrophobic bond

D. hydrogen bond

38 / 50

38. 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

39 / 50

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

A. Acetophenone

B. Phenyl propyl ketone

C. Phenyl acetone

D. Phenyl methyl ketone

40 / 50

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

A. useful in the manufacture of margarine

B. likely to be highly saturated

C. useful in the manufacture of paints

D. likely not to be reactive with iodine

41 / 50

41. 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

42 / 50

42. Organic chemistry is the study of ?___

A. non hydro carbons

B. hydro carbon

C. some carbon compounds

D. all carbon compounds

43 / 50

43. The general reaction of the carbonyl groups?

A. nucleophilic addition

B. electrophilic substitution

C. electrophilic addition

D. nucleophilic substitution

44 / 50

44. 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. nucleophilicity

B. isomerism

C. hydrogen bonding

D. resonance

45 / 50

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

A. Groundnut

B. Guinea corn

C. Garri

D. Pupuru

46 / 50

46.

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

A. Phenol

B. Aldehyde

C. Ester

D. Ketone

47 / 50

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

A. H2.N.OH

B. CH2.OH

C. CH3.NH2.OH

D. C6.H5.NH-OH

48 / 50

48. A natural source of phenol is _____

A. vegetable oils

B. fermentation of plants

C. high temperature distillation

D. coal tar

49 / 50

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

A. Tertiary

B. Primary

C. Secondary and Tertiary

D. Secondary

50 / 50

50.

Diethylether is correctly represented by the formula

A. CH3CH2CH3CH2

B. CH3OCH3

C. CH3CH2OCH2CH3

D. CH3OCH2CH3

Your score is

The average score is 52%

Ace/Undergragra July 17, 2023

0 470 1 minute read

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