`C_(6)H_(5)Br overset(Mg)rarr X overset(CH_(3)I)rarr Y`
The product Y is

Options

A. `K_(2)Cr_(2)O_(7)`
B. `NH_(4)NO_(3)`
C. `NH_(4)NO_(2)`
D. `(NH_(4))_(2)Cr_(2)O_(7)`

Answer

D

Explanation

`(NH_(4))_(2)Cr_(2)O_(7) overset(Delta)(rarr)N_(2)+Cr_(2)O_(3)+H_(2)O`
`(NH_(4))_(2)Cr_(2)O_(7)+NaCl+Conc H_(2)SO_(4) overset(Delta)(rarr)`
`CrO_(2)Cl_(2) uarr overset(NaOH)(rarr)Na_(2)CrO_(4)`
`N_(2)+Mgoverset(Delta)(rarr)Mg_(3)N_(2) overset(H_(2)O)(rarr)NH_(3)`
`H_(2)O`+anhydrous `CuSO_(4)rarr` Blue vitriol.