(ii) Benzoic acid to m-nitrobenzylalcohol. (b)How will you carry out following conversions: (i) 4-chloro pentan-2-one (ii) But-2-en-l-al (a)Draw the structures of the following compound: (b)Describe the chemical test to distinguish between. (i) Aldol condensation (ii) Cannizzaro’s reaction (b)Write the chemical equations to illustrate each of the following name reactions: However, only one is involved in the formation of semicarbazone. (ii) There are two -NH2 groups in semicarbazide (H2NNHCONH2). (i) CHsCHO is more reactive than CH3COCH3 towards reaction with HCN. (b) Give simple chemical tests to distinguish between the following pairs of compounds: (iii) C6H5CHO in the presence of dilute NaOH (a) Write the products formed when ethanal reacts with the following reagents: (c) Out of CH3CH2-CO-CH2-CH3 and CH3CH2-CH2-CO-CH3, which gives iodoform test? (i) Rosenmund reduction (ii) Cannizzaro’s reaction (b) Write the chemical equations to illustrate the following name reactions: (it) Carboxylic acids do not give reactions of carbonyl group. (i) Cl-CH2COOH is a stronger acid than CH3COOH. (ii) Carboxylate ions are more stable than phenoxide ions as negative charge is delocalised on two oxygen atoms in carboxylate ions. (i) CH3CHO is more polar and has less stearic hindrance, therefore, more reactive with HCN than CH3COCH3. (b)Write the chemical equations to illustrate the following name reactions: (ii) Carboxylic acid is a stronger acid than phenol. (i) CH3CHO is more reactive than CH3COCH3 towards reaction with HCN. Propanal will not give yellow ppt, whereas propanone will give yellow ppt, due to iodoform. Benzaldehyde will not react, whereas benzoic acid will give brisk effervescence due to C02. (b)(i) Add NaHC03 solution to 2 mL of each in a test tube. (b)Give simple chemical tests to distinguish between the following pairs of compounds: Write the products of the following reactions : Write the IUPAC name of the following compound: Write the structure of 2-hydroxybenzoic acid. Write the structure of 4-chloropentan-2-one. Write the structure of p-methylbenzaldehyde. (a) Write the structures of A, B, C and D in the following reactions. Predict the products in the following reactions: Predict the products in the following reactions Predict the products of the following reactions: Name the reagents used in the following reactions.Īrrange the following compounds in increasing order of their property as indicated 2,4-dinitrobenzoic acid, 4 methoxybenzoic acid, 4 nitrobenzoic acid(acidic character).CH3CHO, C6H5CHO, HCHO (reactivity towards nucleophilic addition reaction).Write the reagents used iii the following reactions :Īrrange the following compounds in increasing order of their property as indicated. Name the reagents used in the following reactions:
Write the reagents required in the following reactions:
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