Identify the reactions in which `N_2` is liberated
(a) `(NH_4) _2 SO_4 + NaOH to`
(b) `NH_3 + CI_2 to "(excess")`
(c ) `(NH_4)_2 Cr_2 O_7 overset(Delta)(to)`
(d) `NH_4 NO_3 overset(Delta) (to)`
(e ) `NH_4 CI_("(aq)") + Na NO_("((aq)") to`

Options

A. a,b,c
B. c,d,e
C. b,c,e
D. a,c,d

Answer

C

Explanation

(a) `(NH_4)_2 SO_4 + 2NaOH to Na_2 SO_4 + 2NH_4 + 2H_2 O`
(b) `8NH_3 + 3CI_2 to N_2 + 6NH_4 CI`
(c) `(NH_4)_2 Cr_2 O_7 overset(Delta) (to) N_2 + 4H_2 O + Cr_2 O_3`
(d) `NH_4 NO_(3) overset(Delta) (to) N_2 O + 2H_2 O`
(e) `NH_2 CI (aq) + NaNO_2 (aq) overset(Delta) (to) NaCI + N_2 + 2H_2 O`