4. Identify A in the following chemical reaction. 5. 6. CH3O (A) HO (C) CHO i) HCHO, NaOH ii) CH3CH2Br, NaH, DMF iii) HI,A CHOH CHOH (B) HO CH -OCH2CH3 (D) HO CH3O The nature of charge on resulting colloidal particles when FeCl3 is added to excess of hot water is: (a) negative (b) neutral (c) sometimes positive and sometimes negative (d) positive Match List I and List - II. List - I N CI CuCl N List - II (i) Wurtz reaction (b) N CI Cu, HCI CI ksh N (ii) Sandmeyer reaction Ether (c) 2CH3CH2 C2H5-C2H5 (iii) Fittig reaction 7. (d) 2C6H5 Ether C6H5-C6H5 (iv) Gatterman reaction. oose the correct answer from the options given below: (a) (A)(ii), (B)(i), (C) (iv), (D) (iii) (c) (A) (iii), (B)(iv), (C)(i), (D) (ii) (b) (A) (iii), (B)(i), (C)(iv), (D) (ii) (d) (A)(ii), (B)(iv), (C)(i), (D) (iii) Ceric ammonium nitrate and CHCl3/alc. KOH are used for the identification of functional groups present in...............and.................respectively. (a) amine, phenol (b) alcohol, phenol (c) amine, alcohol (d) alcohol, amine