Match List I with List II and select the answer using the code given below the Lists:
List I
(Element)List II
(Atomicity)A. Phosphorus 1. 2 B. Nitrogen 2. 1 C. Neon 3. 8 D. Sulphur 4. 4
Code:
| (a) | 4 | 1 | 2 | 3 |
Matching Elements with Atomicity: A Detailed Explanation
This question requires matching elements listed in List I with their corresponding atomicity provided in List II. We need to determine the atomicity of each element and find the correct code that represents this matching.
Understanding Atomicity
Atomicity refers to the number of atoms present in one molecule of an element. Let's consider the elements given in List I:
- Phosphorus (P): Typically exists as a molecule containing 4 atoms, denoted as \(P_4\). Therefore, its atomicity is 4.
- Nitrogen (N): Exists as a diatomic molecule, \(N_2\). Its atomicity is 2.
- Neon (Ne): Neon is a noble gas and exists as individual atoms. Thus, it is monoatomic, with an atomicity of 1.
- Sulphur (S): Commonly exists as an octatomic molecule, \(S_8\). Its atomicity is 8.
Matching List I with List II
Now, let's match these elements with the atomicity values provided in List II:
List I:
- A. Phosphorus
- B. Nitrogen
- C. Neon
- D. Sulphur
List II:
- 1. Atomicity 2
- 2. Atomicity 1
- 3. Atomicity 8
- 4. Atomicity 4
Based on our analysis:
- Phosphorus (A) has atomicity 4, which corresponds to item 4 in List II.
- Nitrogen (B) has atomicity 2, which corresponds to item 1 in List II.
- Neon (C) has atomicity 1, which corresponds to item 2 in List II.
- Sulphur (D) has atomicity 8, which corresponds to item 3 in List II.
Therefore, the correct matching is A-4, B-1, C-2, D-3.
Identifying the Correct Code
The codes provided in the options represent the matching based on the order A, B, C, D corresponding to the indices of List II. For example, code '4 1 2 3' means:
- A is matched with the 4th item of List II.
- B is matched with the 1st item of List II.
- C is matched with the 2nd item of List II.
- D is matched with the 3rd item of List II.
The matching we derived (A-4, B-1, C-2, D-3) corresponds exactly to the code '4 1 2 3'.
Let's examine the options:
| Option | Code (A B C D) |
| (a) | 4 1 2 3 |
| (b) | 4 2 1 3 |
| (c) | 3 2 1 4 |
| (d) | 3 1 2 4 |
The code '4 1 2 3' matches our derived correct pairings.
Final Answer
The correct option is the one that provides the code '4 1 2 3'.
Correct Matching:
- A. Phosphorus → 4
- B. Nitrogen → 1
- C. Neon → 2
- D. Sulphur → 3
This corresponds to Option (a).
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