PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free Demo1.
| Statement 1: | When oxygen reacts with metals, it forms their corresponding metal oxides. |
| Statement 2: | The metal oxides are acidic in nature. |
2.
| Statement 1: | When petrol reacts with oxygen, it forms carbon dioxide and water vapour. |
| Statement 2: | Hydrocarbons burn in oxygen and produce heat and light energy; hence, they are good fuel. |
| Statement 1: | Nitrogen does not combine with elements at normal conditions. |
| Statement 2: | Nitrogen combines with elements in the presence of a catalyst. |
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