Alcohols, Phenols and Ethers  MCQs

MCQs of Alcohols, Phenols and Ethers

Showing 41 to 50 out of 120 Questions
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41.
Which of the following compounds is used as analgesic drug ?
(a) 2-Acetyloxy benzoic acid
(b) Methyl-2-hydroxy benzoate
(c) Dimethyl benzoate
(d) (A) and (B) both
Answer:

Option (d)

42.
Total possible isomers of C4H10O are :
(a) 5
(b) 7
(c) 6
(d) 4
Answer:

Option (b)

43.
On the basis of which law, product 2-propanol is obtained by acid catalysed hydration of propene ?
(a) Le-Chatelier
(b) Markonnikov
(c) Fries
(d) Kolbe-Schmitt
Answer:

Option (b)

44.
Which is the following compounds gives tertairy alcohol with Grignard reagent ?
(a) Formaldehyde
(b) Acetaldehyde
(c) Acetone
(d) Acetic acid
Answer:

Option (c)

45.
Which of the following statements is not suitable for dehydration of alcohorol ?
(a) Alcohol is converted into oxonium ion through protonation by H+ of acid.
(b) Carbocation is formed by the loss of a water molecule from oxonium ion.
(c) Alkene is formed by adding a proton to carbocation.
(d) The order of ease of dehydration of alcohol is 3° > 2° >1°.
Answer:

Option (c)

46.
Salicyclic acid when heated with Zn powder gives product 'A', which reacts with lithium aluminium hydride formed product 'B', then what are 'A' and 'B' respectively ?
(a) Benzoic acid and benzyl alcohol
(b) Phenol and benzene
(c) Benzoic acid and benzaldehyde
(d) Benzaldehyde and benzoic acid
Answer:

Option (a)

47.
C4H10O and dilute sulphuric acid are heated in closed vessel under pressure gives product 'A' which when heated with concentrated sulphuric acid at 413 K temperature gives C4H8O . Which are C4H10O and 'A' respectively ?
(a) Methyl propyl ether and butanol
(b) Diethyl ether and ethanol
(c) Butane-2-ol and butane-2-one
(d) Butane-l-ol and butane-1-al
Answer:

Option (b)

48.
Place T for true statement and F for false statement and select correct choice:
(i) As number of hydroxyl group increases in alcohol then solubility increase in water.
(ii) The order of acidic strength of alcohol is 3° > 2° > 1°.
(iii) In 3° alcohol intermolecular attraction is more because 3° alcohol possesses more branched chain.
(iv) In alcohol compound alkyl group increases the electron density of O - H bond.
(a) TFTF
(b) TTFT
(c) TFFT
(d) TFTT
Answer:

Option (c)

49.
Which are A, B and C in the following Kolbe Schimtt reaction respectively ?
(a) Salicylic acid, benzoic acid and benzyl alcohol
(b) o-cresol, benzoic acid and benzyl alcohol
(c) Benzoic acid, zinc benzoate and benzene
(d) Sodium salicylate, sodium benzoate and benzyl alcohol
Answer:

Option (a)

50.
A →-CH3COCH3dil. H2SO4 Phenol →CH3COCl/∆ B →CH3CH2OHLiAlH4/H2O C
Which are the compounds A, B and C respectively in the above reaction ?
(a) Cumene peroxide, phenyl ethanoate and ethyl benzoate
(b) Sodium phenoxide, phenyl methanoate and phenol
(c) Cumene hydroperoxide, phenyl acetate and phenol
(d) Sodium phenoxide, phenyl methanoate and phenol
Answer:

Option (c)

Showing 41 to 50 out of 120 Questions
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