Dry distillation of calcium formate gives:
- ✓HCHO
- BHCOOH
- C$ CH_{3}COOH $
- D$ CH_{3}CHO $
Answer: A.
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Alcohols, Phenols and Ethers question types
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M.C.Q (1 Marks)
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5 Q→064 Marks Questions
3 Q→Sample Questions
Alcohols, Phenols and Ethers questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Lucas reagent is:
- ✓Anhydrous $ CaCl_{2} $ and conc. HCl
- BAnhydrous $ ZnCl_{2} $ and conc. HCl
- CAnhydrous $ AlCl_{3} $ and conc. HCl
- DAnhydrous $ PdCl_{2} $ and conc. HCl
Answer: A.
View full solution →
- ✓2-methyl-1-propanal
- BIsobutyl alcohol
- C2-methyl-1-butanal
- DNone of these
Answer: A.
View full solution →Which of the following is a tertiary alcohol?
Butan-2 ol is a:
- APrimary alcohol
- ✓Secondary alcohol
- CTertiary alcohol
- DDihydric alcohol
Answer: B.
View full solution →Explain why are alcohols comparatively more soluble in water than the corresponding hydrocarbons?
Predict the reagent for carrying out the following conversions :
(i) Phenol to benzoquinone
(ii) Anisole to p-bromoanisole
(iii) Phenol to 2, 4, 6-tribromophenol
(i) Phenol to benzoquinone
(ii) Anisole to p-bromoanisole
(iii) Phenol to 2, 4, 6-tribromophenol
Give one chemical reaction to distinguish ethanol and diethyl ether.
Phenols are more acidic than alcohols. Explain.
Write the IUPAC names of the following compounds:
Write equations of the following chemical reactions:
(i) Phenol reacts with conc. $ HNO_{3} $
(ii) Phenol reacts with Zinc dust
View full solution →(i) Phenol reacts with conc. $ HNO_{3} $
(ii) Phenol reacts with Zinc dust
Write IUPAC names of the following:
Write any two differences between $ CH_{3}OH $ and $ C_{2}H_{5}OH $
View full solution →Write chemical reaction for the preparation of phenol from chlorobenzene.
What is meant by hydroboration oxidation reaction? Illustrate with an example.
Give the mechanism for the formation of ethanol from ethene.
(a) Out of t-butyl alcohol and n-butanol, which one will undergo acid catalysed dehydration faster and why?
(b) Carry out the following conversions :
(i) Phenol to Salicylaldehyde
(ii) t-butylchloride to t-butyl ethyl ether
(iii) Propene to Propanol
(b) Carry out the following conversions :
(i) Phenol to Salicylaldehyde
(ii) t-butylchloride to t-butyl ethyl ether
(iii) Propene to Propanol
Write the equations involved in the following reactions:
(i) Reimer-Tiemann reaction
(ii) Kolbe's reaction
(i) Reimer-Tiemann reaction
(ii) Kolbe's reaction
Give the equation of reactions for the preparation of phenol from cumene.
How would you distinguish among primary, secondary and tertiary alcohols?
Write difference between Phenol and Alcohol.
What happens when :
(a) Ethene is passed into concentrated $H _2 SO _4$ and the product boiled with water.
(b) Ethyl ethanoate is boiled with KOH aq.
(c) Methyl magnesium iodide is heated with methanol.
(d) Acetaldehyde is heated with Tollen's reagent.
(e) Alkaline solution of phenol is heated with $CO _2$ under high pressure and then the product is acid hydrolysed.
View full solution →(a) Ethene is passed into concentrated $H _2 SO _4$ and the product boiled with water.
(b) Ethyl ethanoate is boiled with KOH aq.
(c) Methyl magnesium iodide is heated with methanol.
(d) Acetaldehyde is heated with Tollen's reagent.
(e) Alkaline solution of phenol is heated with $CO _2$ under high pressure and then the product is acid hydrolysed.
What happens when:
(a) Propene is passed into concentrated $H _2 SO _4$ and the product is boiled with water.
(b) Methoxy ethane is heated with HI.
(c) Ethanol is heated with Fenton's reagnet.
(d) Toluene is heated with Chromyl Chloride in $CS _2$ and the product is hydrolysed.
(e) Crotonaldehyde is treated with $LiAH _4 / dry$ ether and the product is acid hydrolysed.
View full solution →(a) Propene is passed into concentrated $H _2 SO _4$ and the product is boiled with water.
(b) Methoxy ethane is heated with HI.
(c) Ethanol is heated with Fenton's reagnet.
(d) Toluene is heated with Chromyl Chloride in $CS _2$ and the product is hydrolysed.
(e) Crotonaldehyde is treated with $LiAH _4 / dry$ ether and the product is acid hydrolysed.
Write equations of the following reactions :
(i) Friedel Crafts reaction-alkylation of anisole.
(ii) Nitration of anisole.
(iii) Bromination of anisole in ethanoic acid medium.
(iv) Friedel Crafts acetylation of anisole.
(i) Friedel Crafts reaction-alkylation of anisole.
(ii) Nitration of anisole.
(iii) Bromination of anisole in ethanoic acid medium.
(iv) Friedel Crafts acetylation of anisole.
Explain giving reasons :
(i) Alcohols are generally soluble in water.
(ii) Phenols boil at higher temperature than arenes of comparable molecular mass.
(iii) The lower homologues of alcohols are soluble in water whereas phenols are slightly soluble in water.
(v) Boiling point of an alcohol is higher than the corresponding alkane.
(vi) The solubility of alcohols in water decreases with increase in molecular mass.
(i) Alcohols are generally soluble in water.
(ii) Phenols boil at higher temperature than arenes of comparable molecular mass.
(iii) The lower homologues of alcohols are soluble in water whereas phenols are slightly soluble in water.
(v) Boiling point of an alcohol is higher than the corresponding alkane.
(vi) The solubility of alcohols in water decreases with increase in molecular mass.
Give equations for the following reactions :
(i) Oxidation of propan-1-ol with alkaline $KMnO _4$ solution.
(ii) Bromine in presence of $C S _{ 2 }$ with phenol.
(iii) Dilute nitric acid with phenol.
View full solution →(i) Oxidation of propan-1-ol with alkaline $KMnO _4$ solution.
(ii) Bromine in presence of $C S _{ 2 }$ with phenol.
(iii) Dilute nitric acid with phenol.
What happens when primary, secondary and tertiary alcohols are:
(i) Oxidised using acidified potassium permanganate.
(ii) Passed over heated copper at 570 K.
(i) Oxidised using acidified potassium permanganate.
(ii) Passed over heated copper at 570 K.
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