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CBT TEST

CHM 204 CBT PRACTICE

Phil

June 21, 2024

Take your time to read instructions before taking this test.

There are 40 questions which you are to answer in 15 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 204 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 June 21, 2024 By

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CHM 204

1 / 40

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

A. hydrogen bond

B. hndrophobic bond

C. disulfide bond

D. ether bond

2 / 40

The parent compound of polynuclear hydrocarbons is ___________

A. Anthracene

B. Biphenyl

C. Phenatrene

D. Naphthalene

3 / 40

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

A. A primary amine

B. An alcohol

C. A secondary amine

D. Ammonia

4 / 40

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

A. O2

B. CO2

C. H2

D. N2

5 / 40

5. A natural source of phenol is _____

A. vegetable oils

B. coal tar

C. fermentation of plants

D. high temperature distillation

6 / 40

CH3COCH3 stands for ------

A. Ketone

B. Ester

C. Aldehyde

D. Acid

7 / 40

7. Polymerization of ethyne produces ?

A. none of the above

B. Benzoic acid

C. Benzene

D. polyethyne

8 / 40

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

A. Secondary

B. Tertiary

C. Secondary and Tertiary

D. Primary

9 / 40

9. 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. resonance

C. nucleophilicity

D. hydrogen bonding

10 / 40

10. Organic chemistry is the study of ?___

A. some carbon compounds

B. hydro carbon

C. non hydro carbons

D. all carbon compounds

11 / 40

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

A. All

B. H.C.N

C. Na.BH4

D. N.H2.OH

12 / 40

12. phenol is regarded as an acid because _____

A. it’s insoluble in water

B. it’s corrosive to the skin

C. it’s volatile

D. it easily releases a proton due to resonance

13 / 40

13.

A benzenoid hydrocarbon in which two benzene rings are fused together at the ortho position is called ____________

A. Phenanthrene

B. Anthracene

C. Naphthalene

D. Biphenyl

14 / 40

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

A. hydrophobic moleculesq

B. positively charged compounds

C. zwitterions

D. negatively charged compounds

15 / 40

15.

The stronger an acid the ___________ is its conjugate base

A. Weaker

B. None of the options

C. Stronger

D. Both have no correlation

16 / 40

16.

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

A. Ester

B. Ketone

C. Phenol

D. Aldehyde

17 / 40

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

A. Ionization

B. Hydrogen bonding

C. Lower molecular weight

D. Mutual incompatibility

18 / 40

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

A. Polymer

B. Biomass

C. Bioenzyme

D. Polysaccharide

19 / 40

19. 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

20 / 40

20.

Identify the most acidic compound from the following options

A. Cl.CH2.COOH

B. C2.H5.COOH

C. Cl2.CH.COOH

D. C3.H7.COOH

21 / 40

21. The number or π-electrons in benzene is _____________

A. 2

B. 4

C. 6

D. 8

22 / 40

22. An example of Isolated Benzenoid Hydrocarbon is __________

A. Anthracene

B. Phenatrene

C. Naphthalene

D. Biphenyl

23 / 40

23. Which general class of compounds does amine belong?

A. Propanol amine

B. Nitrile

C. Acetamide

D. Nitro amine

24 / 40

24. There are ---------- resonance structures of benzene

A. 4

B. 3

C. 2

D. 5

25 / 40

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

A. ketone + alcohol

B. acid + acetone

C. alcohol + aldehydes

D. primary aldehyde + ketone

26 / 40

26. Iodoform is easily recognized by?

A. It’s ether smell and blue colour

B. it’s urine smell

C. it’s medicinal smell and yellow colour

D. it’s ammonia smell and green colour

27 / 40

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

A. likely not to be reactive with iodine

B. useful in the manufacture of margarine

C. likely to be highly saturated

D. useful in the manufacture of paints

28 / 40

28. Basic hydrolysis of any oil can produce ___

A. oil hydrolyte

B. oil hydrolyte

C. Soap

D. hydrated oil

29 / 40

29. Saponification reaction is best described as _____

A. Condensation reaction

B. Acid promoted hydrolysis reaction

C. Base promoted hydrolysis reaction

D. Soap making reaction

30 / 40

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

A. 2,2-dimethyl-1-pentanol

B. 2,2-dimethyl-2-butanol

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

D. 2,2-dimethyl-1-butanol

31 / 40

31. The process by which benzene and its derivatives are extracted from petroleum is called ___________

A. Cracking

B. Polymerization

C. Aromatization

D. Hydroforming

32 / 40

32.

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

A. Formic acid

B. Ethanal

C. Methanoic acid

D. Formaldehyde

33 / 40

33.

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

A. None

B. Sp2 hybridized

C. Sp hybridized

D. Sp3 hybridized

34 / 40

34. Which of the following will be most acidic?

A. CH3.OH

B. CH3.CH.CH2.COOH

C. CH2.CH2.CH2.COOH

D. CH3.CH2.C.Cl2.COOH

35 / 40

35. Sulphonation of benzene yields ___________

A. Auto sulphur benzene

B. Para sulphur benzene

C. Sulphric acid

D. Sulphonic acid

36 / 40

36.

In electrophilic addition to alkenes, the electrophilic attack is on __________

A. H-H bond

B. None of the options

C. C-H bond

D. C=C bond

37 / 40

37.

Diethylether is correctly represented by the formula

A. CH3OCH3

B. CH3CH2CH3CH2

C. CH3CH2OCH2CH3

D. CH3OCH2CH3

38 / 40

38.

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

A. Amines

B. Esters

C. Amides

D. Aromatics

39 / 40

39.

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

A. 90.5 degrees

B. 45.5 degrees

C. 120.5degrees

D. 190.5 degrees

40 / 40

40.

The cannonical forms of benzene were proposed by _____________

A. Kekule and Dewar

B. Dalton and Dewar

C. Kekule and Dalton

D. None of the options

Your score is

The average score is 38%

CHM 204 CBT PRACTICE

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