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Suggest a reagent for conversion of ethanol to ethanal.
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Suggest a reagent for conversion of ethanol to ethanoic acid.
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Arrange the following compounds in increasing order of acidity and give a suitable explanation.
Phenol, o-nitrophenol, o-cresol
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Name the enzymes and write the reactions involved in the preparation of ethanol from sucrose by fermentation.
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Dipole moment of phenol is smaller than that of methanol. Why?
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The carbon-oxygen bond in phenol is slightly stronger than that in methanol. Why?
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Arrange water, ethanol and phenol in increasing order of acidity and give reason for your answer.
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Match the items of column I with items of column II.
| Column I | Column II | |
| (i) | Antifreeze used in car engine | (a) Neutral ferric chloride |
| (ii) | Solvent used in perfumes | (b) Glycerol |
| (iii) | Starting material for picric acid | (c) Methanol |
| (iv) | Wood spirit | (d) Phenol |
| (v) | Reagent used for detection of phenolic group | (e) Ethleneglycol |
| (vi) | By product of soap industry used in cosmetics | (f) Ethanol |
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Match the items of column I with items of column II.
| Column I | Column II | |
| (i) | Methanol | (a) Conversion of phenol to o-hydroxysalicylic acid |
| (ii) | Kolbe’s reaction | (b) Ethyl alcohol |
| (iii) | Williamson’s synthesis | (c) Conversion of phenol to salicylaldehyde |
| (iv) | Conversion of 2° alcohol to ketone | (d) Wood spirit |
| (v) | Reimer-Tiemann reaction | (e) Heated copper at 573 K |
| (vi) | Fermentation | (f) Reaction of alkyl halide with sodium alkoxide |
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Assertion: Ethanol is a weaker acid than phenol.
Reason: Sodium ethoxide may be prepared by the reaction of ethanol with aqueous \[\ce{NaOH}\].
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Which of the following compounds will give butanone on oxidation with alkaline \[\ce{KMnO4}\] solution?
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Oxidation of ketones involves carbon-carbon bond cleavage. Name the products formed on oxidation of 2, 5-dimethylhexan-3-one.
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Carbohydrates are essential for life in both plants and animals. Name the carbohydrates that are used as storage molecules in plants and animals, also name the carbohydrate which is present in wood or in the fibre of cotton cloth.
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Which of the following is an example of liquid dishwashing detergent?
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Polyethyleneglycols are used in the preparation of which type of detergents?
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Which of the following are anionic detergents?
(i) Sodium salts of sulphonated long-chain alcohol.
(ii) Ester of stearic acid and polyethylene glycol.
(iii) Quarternary ammonium salt of amine with acetate ion.
(iv) Sodium salts of sulphonated long-chain hydrocarbons.
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Which of the following statements are correct?
(i) Cationic detergents have germicidal properties.
(ii) Bacteria can degrade the detergents containing highly branched chains.
(iii) Some synthetic detergents can give foam even in ice cold water.
(iv) Synthetic detergents are not soaps.
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Explain why some times foaming is seen in river water near the place where sewage water is poured after treatment?
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Which category of the synthetic detergents is used in toothpaste?
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