Reaction of x g of Sn with HCl quantitatively produced a salt. Entire amount of the salt reacted with y g of nitrobenzene in the presence of required amount of HCl to produce 1.29 ~g of an organic salt (quantitatively). (Use Molar masses (in g mol ^ -1 ) of H , C , N , O , Cl and Sn as 1,12,14,16,35 and 119 , respectively). The value of x is _______ .
A. A
Mass of salt produced = 1 . 29   g Moles of salt produced = 1 .29 129 = 0 .01   mole To produce, 0 . 01   mole organic salt 0 . 01   mole PhNO 2 and 0 . 03   mole   SnCl 2 is required. 0 . 03   mole   SnCl 2 is produced from 0 . 03   mole Sn . Mass of Sn = x   gm = 0 .03 × 119 = 3 .57   g Mass of PhNO 2 = y   gm = 0 .01 × 123 = 1 .23   g x = 3 .57       y = 1 . 23
Related: Chemistry — Some Basic Concepts of Chemistry · All PYQ Banks