S Block Elements Question 53
Question: The alkaline earth metals $ Ba, $ $ Sr, $ $ Ca $ and $ Mg $ may be arranged in the order of their decreasing first ionisation potential as
[CPMT 1990]
Options:
A) $ Mg, $ $ Ca, $ $ Sr, $ $ Ba, $
B) $ Ca, $ $ Sr, $ $ Ba, $ $ Mg $
C) $ Sr, $ $ Ba, $ $ Mg, $ $ Ca $
D) $ Ba, $ $ Mg, $ $ Ca, $ $ Sr, $
Show Answer
Answer:
Correct Answer: A
Solution:
| Element - | Mg | Ca | Sr | Ba |
|---|---|---|---|---|
| I.E - | 737 | 590 | 549 | 503 |
BETA
