Revision - p-Block Elements

Grade 12 Chemistry — Revision - p-Block Elements: 25 practice questions with instant scoring and explanations.

1. Group 15 elements have configuration:
2. Nitrogen is unreactive because:
3. Ammonia shows basicity due to:
4. Haber's process: N₂ + 3H₂ ⇌ 2NH₃ uses:
5. Nitric acid prepared by Ostwald's oxidizes ammonia over:
6. Phosphorus forms:
7. White phosphorus is:
8. Group 16 configuration is:
9. Ozone (O₃) is a:
10. H₂O₂ acts as:
11. Sulfuric acid is prepared by:
12. V₂O₅ catalyst in contact process oxidizes:
13. Group 17 configuration is:
14. Reactivity of halogens: F₂ > Cl₂ > Br₂ > I₂ is because:
15. Halogens show oxidation states:
16. Chlorine is extracted by electrolysis of:
17. Bleaching by Cl₂ is due to:
18. Group 18 configuration is:
19. Noble gases are:
20. XeF₂ is formed by:
21. XeF₂ geometry is:
22. Xenon can form compounds because:
23. HF is a weak acid while HCl is stronger because:
24. Hard water contains:
25. Temporary hardness removed by: