Class 12 Chemistry Chapter 5 – Group 2 Elements MCQs | FBISE | Grade 12 Chemistry
Description: Practice 50 chapter-wise MCQs covering Group 2 trends, electron configuration, reactivity, reactions with oxygen, water and acids, oxides, hydroxides, carbonates, nitrates, extraction, thermal decomposition and everyday uses.
1. Group 2 elements are found in which block of the periodic table?
2. The elements of Group 2 are commonly known as:
3. The general valence-shell electron configuration of Group 2 elements is:
4. Group 2 elements tend to form ions with charge:
5. Down Group 2, atomic radius generally:
6. Down Group 2, first ionization energy generally:
7. Down Group 2, metallic character generally:
8. Down Group 2, the outer electrons are generally:
9. The increasing ease of removing outer electrons down Group 2 helps explain the increase in:
10. Which Group 2 element is the smallest in atomic size among these?
11. Which Group 2 element is generally the most reactive among these?
12. Group 2 metals generally react with oxygen to form:
13. Beryllium reacts with oxygen to form mainly:
14. Magnesium burns in oxygen to produce:
15. Calcium reacts with oxygen to form:
16. Down Group 2, the oxides generally become:
17. The basic character of Group 2 oxides generally:
18. Beryllium oxide is unusual because it is:
19. Magnesium oxide is generally:
20. Calcium oxide is commonly called:
21. Calcium hydroxide is commonly called:
22. Calcium oxide reacts with water to form:
23. The reaction CaO + H₂O → Ca(OH)₂ is:
24. Down Group 2, the solubility of hydroxides generally:
25. Magnesium hydroxide is only slightly soluble in water and is used in:
26. Calcium hydroxide solution is commonly called:
27. A suspension of calcium hydroxide in water is commonly called:
28. Calcium hydroxide is used in agriculture mainly to:
29. Group 2 metals react with water with reactivity that generally:
30. Beryllium does not react readily with water mainly because of:
31. Magnesium reacts very slowly with cold water but more readily with:
32. Calcium reacts with cold water to produce:
33. The general reaction of a Group 2 metal M with water is:
34. Group 2 metals react with dilute acids generally to produce:
35. Magnesium with hydrochloric acid produces:
36. Calcium with hydrochloric acid produces:
37. Which Group 2 element reacts least readily with dilute acids among Be, Mg and Ca?
38. The carbonate ion has the formula:
39. The thermal stability of Group 2 carbonates generally:
40. The carbonate of magnesium decomposes on heating to form:
41. The carbonate of calcium decomposes on strong heating to form:
42. The nitrate ion has the formula:
43. On heating, Group 2 nitrates generally produce:
44. Magnesium nitrate on heating produces:
45. The thermal decomposition of Group 2 carbonates is useful for comparing their:
46. The extraction of very reactive Group 2 metals is commonly achieved by:
47. Magnesium is industrially extracted by electrolysis of:
48. In electrolysis of molten MgCl₂, magnesium is formed at the:
49. At the cathode during MgCl₂ electrolysis:
50. A major everyday use of calcium compounds is in:
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Class 12 Chemistry Chapter-wise MCQs
Chapter 1 – Ethics and Values in ChemistryChapter 2 – ElectrochemistryChapter 3 – Chemical EquilibriaChapter 4 – Acid-base ChemistryChapter 5 – Group 2 ElementsChapter 6 – The Transition MetalsChapter 7 – Organic ChemistryChapter 8 – HydrocarbonsChapter 9 – HalogenoalkanesChapter 10 – Hydroxy CompoundsChapter 11 – Carbonyl CompoundsChapter 12 – Nitrogen CompoundsChapter 13 – PolymersChapter 14 – Organic SynthesisChapter 15 – BiochemistryChapter 16 – Empirical Data Collection and AnalysisChapter 17 – Qualitative AnalysisChapter 18 – SpectroscopyChapter 19 – ChromatographyChapter 20 – MaterialsChapter 21 – MedicineChapter 22 – AgricultureChapter 23 – Industry
Syllabus & SLO Alignment
These MCQs are prepared with reference to the FBISE HSSC-II Chemistry Assessment Framework and the National Curriculum of Pakistan 2022–23. The chapter covers C-12-C-01, C-12-C-02, C-12-C-03, C-12-C-04, C-12-C-05, C-12-C-06, C-12-C-07, C-12-C-08, including Group 2 properties and trends, reactivity, electron configuration, uses of compounds, reactivity series, extraction and purification, and thermal decomposition of Group 2 compounds.
SLO range: C-12-C-01 to C-12-C-15
Related concepts are included where they strengthen understanding and broader academic preparation.