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P-Block Elements Boron & Carbon Family Test Online MCQs

Test Name P-Block Elements Boron & Carbon Family Test
Subject Chemistry
Test Type MCQs
Total Question 15
Total Marks 30
Total Time 15 Mints
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P-Block Elements Boron & Carbon Family Test Online MCQs


1. The commercial salt is purified by passing


Question 1 of 15

2. The molecular formula of Plaster of paris is:


Question 2 of 15

3. Chemical A is used for softening of water to remove temporary hardness. A reacts with sodium carbonate to produce caustic soda.
When CO₂ is bubbled through ‘A’, it turns cloudy, Chemically ‘A’, is:


Question 3 of 15

4. Which one of the following alkaline earth metals shows some anomalous behavior and has same electro negativity as aluminium?


Question 4 of 15

5. The correct sequence of increasing melting points of BeCI₂, MgCI₂, CaCI₂, SrCI₂ and BaCI₂ is


Question 5 of 15

6. Which one of the following hydroxide is insoluble in water?


Question 6 of 15

7. Nitrolium is:


Question 7 of 15

8. A metal salt solution forms a yellow precipitate with potassium chromate in acetic acid, a white precipitate with dil H₂SO₄, but gives no precipitate with NaCl. The metal salt solution will consist of:


Question 8 of 15

9. An inorganic compound which on heating first melt, then solidifies and liberates a gas, is


Question 9 of 15

10. The first ionization potential is maximum for:


Question 10 of 15

11. Largest difference in radii is found in case of the pair


Question 11 of 15

12. Which property of sodium is being used in street lights?


Question 12 of 15

13. On dissolving moderate amount of sodium metal in liquid NH₃ at low temperature, which one of the following does not occur?


Question 13 of 15

14. The pair whose both species are used in ant-acid medicinal preparations is:


Question 14 of 15

15. Among the following components of cement which is present in highest amount?


Question 15 of 15



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