PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoAnswer the following questions using the data given below:
i. A and R are correct, R explains the A.
ii. A is correct, R is wrong.
iii. A is wrong, R is correct.
iv. A and R are correct, R doesn’t explains A.
1.
| Assertion: | The nature of bond in HF molecule is ionic. |
| Reason: | The electronegativity difference between H and F is 1.9 |
2.
| Assertion: | Magnesium is used to protect steel from rusting |
| Reason: | Magnesium is more reactive than iron |
3.
| Assertion: | An uncleaned copper vessel is covered with greenish layer |
| Reason: | Copper is not attacked by alkali |
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