(iii) The diazonium ion Acts as electrophile. (ii) Grignard’s reagent should be prepared under anhydrous conditions. Question 57: margin-right: auto; (iii) Of the two bromoderivatives, C6H5CH(CH3)Br and C6H5CH(C6H5)Br which one is more reactive in SN1 substitution reaction and why? (ii) chlorobenzene is treated with CH3Cl in the presence of anhydrous AlCl3. Q.6: What do you mean by chirality of a compound. alkyl halides are called SN1 reactions, e.g. Answer: Haloalkanes and Haloarenes Previous Year Question 2: From phenol. description. (c)   Write the complete chemical reaction for the conversion of aniline to Sulphanilic acid. Answer: Question 68: (ii) benzene into N, N-dimethyl aniline? The sample is treated with benzene sulphonyl chloride, C 6 H 5 SO 2 Cl (Hinsberg’s reagent) followed by treatment with aqueous KOH (5%) solution. Sulphuric acid" is 18M. Aniline can be converted to chlorobenzene by treating with CuCl and HCl. (a) n-Butyl bromide has higher boiling point than f-butyl bromide. CH3CH2Br will react faster due to less stearic hindrance. (ii) haloalkanes are only slightly soluble in water but dissolve easily in organic solvents. Answer: Question 84: Since electron density is maximum at o and p-positions due to +R effect, therefore, electrophilic substitution will take place at o- and p-positions. (i) 2-Bromo-2-methylbutane < 2-Bromopentane < 1-Bromopentane Aniline Anilinium hydrogen sulphate. Save my name, email, and website in this browser for the next time I comment. } Write the structure of the reagent/ organic compound A to F in the following sequence of reactions: Q.3. Sulphanilic acid has acidic at well as basic groups, but it is soluble in alkali but insoluble in mineral acids. What are ambident nucleophiles? Answer: Haloalkanes and Haloarenes Previous Year Question 15:

display: block; (iii) C6H5CH(C6H5) Br will undergo SN1 substitution due to greater stability of carbocation formed. Write the chemical equations in support of your answer. Benzediazonium chloride Nitrobenzene. Important Questions for Class 12 Chemistry Chapter 10 Haloalkanes and Haloarenes Class 12 Important Questions ... Aniline to bromobenzene (ii) Chlorobenzene to 2-chloroacetophenone (iii) Chloroethane to butane (All India 2015) Answer: (i) Aniline to bromobenzene.
A solution of glucose in water is labelled as 10% w/w, what would be the molality and mole fraction of each component in the solution? font-size: 14px; to Q.72 (iii). Q.15: Write the IUPAC name of the following compound: Q.16: Explain why the dipole moment of chlorobenzene is lower than that of cyclohexyl chloride? Important Solutions 2487. Give reasons for the following: Answer: Draw structure for the following compounds: (a)   p-toluidine                                             (b)   t-butyl amine, (c)   p-tert-butyl aniline                             (d)   N-isopropylaniline. Answer: Question 65: Calculate the half-life of a first order reaction from their rate constants given below: What are the expected products of hydrolysis of lactose? Question 23: (ii)   Aniline to N-Phenylethanamide. 3-Bromo-2-methylprop-l-ene. Write structure of the compound: