XII Chemistry Alcohol Phenol and Ether Online Test Mdcat-2024

Instructions for Alochols , Phenols and Ethers Online Test Mdcat-2024:

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NameEmailPhone Number

1 / 50

1. Catechol and resorcinol are:

a) Position isomers

b) Functional isomers

c) Metamers

d) Tautomers

2 / 50

2. Benzyl alcohol is treated completely with mixture of K2Cr2O7 and conc. H₂SO₄ to form:

a) Phenol

b) Benzoic acid

c) Benzaldehyde

d) Catechol

3 / 50

3. Anisole is:

a) A primary alcohol

b) A phenol

c) A symmetrical ether

d) An aromatic ether

4 / 50

4. Major product for reaction of phenol with conc. H₂SO₄ at low temperature is:

a) o-hydroxy benzene sulphonic acid

b) p-hydroxy benzene sulphonic acid

c) equimolar mixture of A and B

d) phenol does not undergo sulphonation with H2SO4

5 / 50

5. Lucas reagent is a mixture of:

a) conc.HCl and ZnCl2

b) dil. HCl and ZnCl2

c) conc. H₂SO₄ and ZnCl2

d) dil. H₂SO₄ and ZnCl2

6 / 50

6. Catalytic reduction of phenol gives:

a) Cyclohexane

b) Benzene

c) Cyclohexanol

d) Cyclohexene

7 / 50

7. Tertiary alcohols are resistant towards oxidation because of:

a) Absence of a-H

b) Steric hindrance

c) Hyper conjugating effect of alkyl groups 3 ° alcohols are highly reactive

d) Low reactivity

8 / 50

8. Intermolecular dehydration of alcohols leads to the formation of:

a) Ethers

b) Alkenes

c) Alkyne

d) Aldehyde

9 / 50

9. Aldehydes can be reduced to primary alcohols by:

a) LAIH

b) Alkene

c) H₂/Ni

d) NaBH

e) A.O.T

10 / 50

10. Reaction of sodium salt of phenol with CO₂ is called as:

a) Kolbe-Schmitt reaction

b) Gatterman reaction

c) Etard reaction

d) Reimer-Tiemann reaction

11 / 50

11. Which one is incorrect for phenol?

a) Gives white precipitate with aqueous Br2

b) Forms violet colored solution with FeCl

c) Gives H₂ gas with Na-metal

d) Evolves CO, gas from carbonates and bicarbonates

12 / 50

12. Esters are produced when:

a) Alcohols react with carboxylic acids

b) Phenols react with carboxylic acids

c) Phenols react with acid halide

d) Both A and C

13 / 50

13. Conversion of glucose to ethyl alcohol in fermentation process of starch is brought about by enzyme:

a) Invertase

b) Zymase

c) Diastase

d) Amylase

14 / 50

14. In Dow's process phenol is prepared from:

a) Sodium benzene sulfphonate

b) Chlorobenzene

c) Cumene

d) Benzene diazonium chloride

15 / 50

15. Oxidation product of isopropyl alcohol is:

a) Propanal

b) Propanoic acid

c) Ethanoic acid and formic acid

d) Propanone

16 / 50

16. Which alcohol of the following reacts at fastest rate with Lucas reagent?

a) CH₃CH₂CH₂OH

b) (CH₃)CHOH

c) . (CH₃)₃COH

d) CH₃OH

17 / 50

17. When a mixture of methyl alcohol and ethyl alcohol is treated with excessive conc.H2SO4 at 140ºC product formed is:

a) CH₃OCH₃

b) C₂H₅OC₂H₅

c) CH₃OC₃H₅

d) A.O.T

18 / 50

18. When phenol is treated with dilute HNO3, major product formed is:

a) O-nitrophenol

b) p-nitophenol

c) Picric acid

d) Both A and B

19 / 50

19. Glycerol is a:

a) Monohydric alcohol

b) Dihydric alcohol

c) Trihydric alcohol

d) Polyhydric alcohol

20 / 50

20. Which of following product is mainly formed if ethanol is dehydrated with conc: Sulphuric acid at 170°C?

a) Diethyl ether

b) Ethene

c) Ethyne

d) Methoxy Methane

e) both a and b

21 / 50

21. Which of following is an anesthetic agent?

a) Acetone

b) Diethyl ether

c) Phenol

d) Ethyl alcohol.

22 / 50

22. Ethanol reacts with PCl₃ to form:

a) Diethyl ether

b) Ethene

c) Ethyl chloride

d) ethanoic acid

23 / 50

23. Alcohol are identified by which test?

a) bromine Water test

b) Sodium Metal test

c) ferric chloride test

d) All of there

24 / 50

24. 1° alcohol and 2° alcohol oxidized in presence of KMnO4/K₂Cr₂O₇ forms_________.

a) ketone

b) Alcohol

c) Carboxylic acid

d) All of these

25 / 50

25. When Ether reacts with strong acid ____ is formed?

a) CarbCarbocationonium ion

b) Carbonium ion

c) Oxonium Salt

d) All of these

26 / 50

26. Ether act as_____

a) Strong acid

b) Weak acid

c) Strong base

d) Weak base.

27 / 50

27. boiling point of Aldehyde ____ than alcohol and Carboxylic acid?

a) Lower

b) higher

c) higher than alcohol bat lower than Carboxylic and

d) None

28 / 50

28. When Excess alcohol heated with H2SO4 at 140°C which product is formed?

a) Ether

b) Ethene

c) Carboxylic Acid

d) both and b.

29 / 50

29. ______is volatile liquid

a) Dimethyl ether

b) Methoxy methane

c) Diethyl ether

d) both a and c

30 / 50

30. The Source of OR^- nucleophile is

a) Ether

b) Alcohol

c) Ester

d) All of these

31 / 50

31. When Sodiumethoxide (C₂H₅ONa) reacts with C₂H₅Cl this reaction is called?

a) Wurtz reaction

b) Lucas Synthesis

c) Williamson Synthesis

d) None of above.

32 / 50

32. Which of the following is correct about ether?

a) C-O-C bond angle is 110.5°.

b) C-O-C bond angle in ether is smaller than water.

c) C-O-C bond angle in ether is smaller than alcohol

d) Only a and b

e) All of these

33 / 50

33. Which of following is Mixed ether?

a) Ethoxyethane

b) Methoxy methane

c) Diphenyl ether

d) All of these

e) none

34 / 50

34. Which of following is Used to Suppress response to Sensory stimulation?

a) Ethoxy Ethane

b) Diethyl ether

c) Ethyl methyl ether

d) both b and c

e) both a and b

35 / 50

35. In Lucas lest which alcohol for within few minutes?

a) primary

b) Secondary

c) Tertiary

d) All of these

36 / 50

36. The structure of_______ are much closer to Water.

a) Phenol

b) ether

c) Aldehyde

d) All of these

37 / 50

37. The reaction in which O-H bond is broken_______

a) CH3COOH + C2H5OH (in the presence of H2SO4)→

b) CH3-CH2-OH + Hcl (in the presence of ZnCl2)→

c) R-CH2-OH +SOCl2→

d) All of these

38 / 50

38. The ease of acid catalyzed dehydration of alcohol is:

a) 3° alcohol > 2° alcohol >1° alcohol

b) 2° alcohol> 3° alcohol> 1° alcohol

c) 1° alcohol > 2° alcohol > 3° alcohol

d) 3° alcohol > 1° alcohol> 2° alcohol.

39 / 50

39. Ethan-1,2-diol reacts with to _______produce Carbonyl Compound.

a) HIO4

b) LiAlH4

c) Periodic acid

d) both a and c.

e) both a and b

40 / 50

40. Which alcohol oxidize in the presence of Strong oxidizing gent gives Acetone?

a) 2° alcohol

b) 1° alcohol

c) 3° alcohol

d) both a & c.

41 / 50

41. Which of the following reaction occurs in presence of pyridine as Solvent?

a) R-CH2-OH-+ PBr3 →

b) R-CH2-OH + PCl5 →

c) R-CH2-OH + SOCl2 →

d) All of these

42 / 50

42. Which reaction occurs immediately?

a) (CH3)2 CHOH +HCI(In the presence of ZnCl2 Anhydrous) →

b) (CH3)3COH + HCl (In the presence of ZnCl2 Anhydrous)→

c) CH3-CH2-OH + HCI (In the presence of ZnCl3 Anhydrous)→

d) All of these.

43 / 50

43. Which of following method alcohol is produced.

1) RCHO ( in the presence of LiAlH4)→

2) RCOR ( in the presence of LiAlH4) →

3) RCOOH ( in the presence of LiAlH4 and ether) →

4) RCOOR ( in the presence of LiAlH4 and ether) →

a) 1 and 2

b) 1 , 2 and 3

c) 3 and 4

d) 1 ,2 ,3 and 4

44 / 50

44. Which of following combination can be used to Synthesis Alcohol?

a) Reaction of R-MgX with Ester

b) Reduction of Aldehyde and ketone.

c) Reaction of R-Mgx with Aldehyde and ketone.

d) All of these

45 / 50

45. Which of the following is correct about Alcohol?

i) The boiling point of alcohol is Lower than ether.

ii) Solubility decrease with increasing the number of alkyl group

iii) The greater the no. of carbon in the molecule, the Lower the boiling point of alcohol.

iv) The mixture of Isopropyl alcohol in water is Used as rubbing alcohol

a) only ii and iv

b) Only iii,I and iv

c) Only ii and iii

d) Only ii

46 / 50

46. Pka Value of Sec:propyl alcohol___

a) 15.5

b) 16.3

c) 15.9

d) 17

47 / 50

47. which of the following alcohol is Secondary?

a) Isopentyl alcohol

b) Isobutyl alcohol

c) Isopropyl alcohol

d) All of these

48 / 50

48. Glycerol ______is alcohol.

a) Monohydric

b) Dihydric

c) Trihydric

d) both b &c.

49 / 50

49. Wood Spirit is term Used for

a) Ethanol

b) Methanol

c) propanol

d) All of these.

50 / 50

50. ______is Used as automative antifreeze:

a) formaldehyde

b) Ethylene glycol

c) Ethan-1,1 diol

d) both b and c.

Your score is

Instructions for Alochols , Phenols and Ethers Online Test Mdcat-2024:

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