In which of the following , `NH_(3)` is not used ?

In which of the following the NH_3 is not used ?

In which of the following reactions NH_(3) gas evolution occurs?

In which of the following reaction does NH_(3) acts as an acid?

In order to distinguish between C_(2)H_(5)NH_(2) and C_(6)H_(5)NH_(2) , Which of the following reagents(s) is useful?

When NH_(4)Cl is not used together with NH_(4)OH in group-III reagent which of the following cation will not be precipitated?

In which of the following combinations, is buffer action expected ? 1. NH_(3)+NH_(4)CI , 2. HCI+NaCI 3. NH_(3)+HCI is 2:1 mole ration Select the correct answer using the code given below: