Which of the following salts produces nitrogen by decomposition ? I. `Pb(NO_(3))_(2)` II. `NH_(4)NO_(2)` III. `NaN_(3)` IV. `(NH_(4))_(2) Cr_(2)O_(7)`
Which of the following salts produces nitrogen by decomposition ?
I. `Pb(NO_(3))_(2)`
II. `NH_(4)NO_(2)`
III. `NaN_(3)`
IV. `(NH_(4))_(2) Cr_(2)O_(7)`
A. I and III only
B. II and III only
C. I, III and IV only
D. II, III and IV only
4 views
1 Answers
Correct Answer - D
`PB(NO_(3))_(2) overset(Delta)rarr PbO+ NO_(2)+O_(2)`
`NH_(4)NO_(2)overset(Delta)rarr N_(2)+H_(2)O`
`NaN_(3) overset(Delta)rarr Na+N_(2)`
`(NH_(2))_(2) Cr_(2)O_(7) overset(Delta)rarr Cr_(2)O_(3) +N_(2)+H_(2)O`
4 views
Answered