Salt A + S B White ppt.<br>A is paramagnetic in nature and contains about 55% K. Thus, A is : — s Block Elements Chemistry Question

💡 Solution & Explanation

Step 1: Passing dry gaseous ammonia over metallic sodium heated in the absence of air triggers a substitution reaction. Step 2: The reaction proceeds as: 2Na(s) + 2NH3(g) -> 2NaNH2(s) + H2(g). Step 3: The stable solid product formed is sodamide (sodium amide). Thus, the correct option is (c).