Chemistry · 2020
JEE Main · 9 January 2020, Shift 1 · Q50
The mass percentage of nitrogen in histamine is \ \ \ \.
The mass percentage of nitrogen in histamine is \_\_\_\_.
Official answer
38 ± 0.2
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JEE Main 2020 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.