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CBSE › Class 12 › Chemistry › The d-and f-Block Elements
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1. H

2. Modern periodic table is given by

3. Which one of the following elements is found in free state in nature?

4. Which of the following is the strongest oxidising agent?

5. Which of the following has maximum ionisation potential?

6. The number of P-O-P bonds in cyclic metaphosphoric acid is

7. Which of the following oxides is an hydride of nitrous acid ?

8. Which oxide of nitrogen is obtained on heating ammonium nitrate at 250°C ?

9. Atomicity of phosphorus is

10. The structure of white phosphorus is

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