MCQ
$NH _{3}$ reacts with bleaching powder to given :
- ✓$N _{2}$
- B$Ca ( OH )_2$
- C$NCl _{3}$
- D$O _{2}$
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$(i)\, KCl$ or $MgO$ $(ii) \,LiF$ or $LiBr$ $(iii)\, Mg_3N_2$ or $NaCl$