Ah, in fountain experiment, ammonia needs to stay dry, but concentrated sulphuric acid? Bhai, it will grab that ammonia and make a solid salt right there in the drying tower—experiment *khatam*! Quicklime just absorbs water, lets the gas pass. Reminds me of my daughter's lab manual, all marked by her pencil. She explained it to me last night while I soaked my knees, her voice so clear and sure. Makes an old man's heart light, even if the chemicals make my eyes water.
#exams#study
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