See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

31. ABCD SECTION – C 32. [5] 33. [7] D is wrong other statements are correct This ore is 2 4 FeCr O and it is the prep. Of 2 2 7 K Cr O in figure 2 4 2 2 3 2 4 2 3 2 FeCr O +O +Na CO Na CrO (yellow)+Fe O +CO  after acidification we have 2 7 2 2 4 2 NaCr O .2H Oand Na SO .10H O 34. [9] Except chloric acid all have 35. [3] 2 5 2 3 2 3 2 7 V O ,V O ,CrO,Cr O ,Mn O ,ZnO (an) (b) (b) (an) (a) (an) 36. [2] AITS-CRT-IV (Paper-1)-PCM (Sol.)-JEE(Advanced)/18 FIITJEE Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi -110016, Ph 46106000, 26569493, Fax 26513942 website: www.fiitjee.com 5 Mathematics PART – III SECTION – A