Consider the following sequence of reaction and identify the final product (Z).
`CH_(3)CH_(2)CH_(2)Br overset("Mg dry ether")rarr (X) overset(CO_(2))rarr (Y) overset(H^(+))rarr(Z)`

Options

A. `CrO_(5)`
B. `NH_(4)OH`
C. `Cr_(2)O_(3)`
D. `Fe(OH)_(2)`

Answer

C

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.