Match List-I with List-II
List-I List-II (Elements) (Atomic Mass (u)) (A) Oxygen (I) 12 (B) Carbon (II) 23 (C) Calcium (III) 16 (D) Sodium (IV) 40
Choose the correct answer from the options given below:
Match List-I with List-II
| List-I | List-II |
|---|---|
| (Elements) | (Atomic Mass (u)) |
| (A) Oxygen | (I) 12 |
| (B) Carbon | (II) 23 |
| (C) Calcium | (III) 16 |
| (D) Sodium | (IV) 40 |
Choose the correct answer from the options given below:
Solution
Option 1 → Incorrectly matches Oxygen with 12 u (should be 16 u) and Carbon with 23 u (should be 12 u).
Option 2 → Incorrectly matches Oxygen with 23 u and Calcium with 16 u (reversed values).
Option 3 → Incorrectly matches Oxygen with 12 u and Carbon with 16 u (values are swapped).
Option 4 → Correctly matches: Oxygen (16 u), Carbon (12 u), Calcium (40 u), and Sodium (23 u).
Hence, Option 4: (A) - (III), (B) - (I), (C) - (IV), (D) - (II) → These are the standard atomic masses for these elements: Oxygen has atomic mass 16 u, Carbon 12 u, Calcium 40 u, and Sodium 23 u → correct
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