PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free Demo1. A shiny brown coloured element ‘X’ on heating in air becomes black in colour.
Name the element ‘X’ and the black coloured compound formed.
Name the element ‘X’ and the black coloured compound formed.
The element ‘\(X\)’ is .
The black coloured compound is a .
The reaction included is \(2Cu\) + \(O_2\) → \(2CuO\)
copper (brown) + → copper oxide (black)
copper (brown) + → copper oxide (black)
Food products are flushed with nitrogen to keep them and prevent them from .
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