MCQ
The major product ' $P$ ' formed in the given reaction is:


- A

- B

- C

- ✓








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${N_2}(g)\, + \,3{H_2}(g)\,\rightleftharpoons \,2N{H_3}\,(g)$
at constant temperature and pressure. Then the ratio of the final volume to the initial volume of gases are.
$\frac{1}{2}\,{P_4}(s)\,\, + \,\,3C{l_2}(g)\, \to \,2PC{l_3}(\ell )\,\,\,\,\,\Delta H\, = \, - \,635\,\,kJ$
$PCl_3 (\ell )\,+\,Cl_2(g)\,\to \,PCl_5(s) \,\,\,\,\Delta H\, =\, -\,137\,kJ$.....$kJ$