See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

       3 3 3 2 AgNO 1 3 2 3 2 3 4 4 Yellow precipitate B Partially soluble in concentrated NH i.e Ag NH Br Cr NH Cl Br Cr NH Cl NO AgBr                        3 AgNO 3 3 3 4 4 White ppt A 3 3 2 Cr NH Br.Cl Cl Cr NH ClBr NO AgCl Soluble in concentrated NH ,i.e. (AgNH ]Cl               Hybridisation of Cr in A or B  d2sp3 having 3 unpaired electrons.   3 3 2 15    = 3.8729 = 3.87 AITS-FT-XI-PCM(Sol.)-JEE(Main)/2021 Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi -110016, Ph 46106000, 26569493, Fax 26513942 website: www.fiitjee.com 13 Mathematics PART – C SECTION – A