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In vapour state Cu(NO3)2 and Cu2(CH3COO)...

In vapour state `Cu(NO_3)_2` and `Cu_2(CH_3COO)_(4).2H_2O` exist as

A

Dimer, monomer

B

monomer,dimer

C

monomer, monomer

D

dimer, dimer

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the vapor state of `Cu(NO_3)_2` and `Cu_2(CH_3COO)_4.2H_2O`, we will analyze each compound separately to determine whether they exist as monomers or dimers. ### Step 1: Analyze `Cu(NO_3)_2` - **Structure**: Copper(II) nitrate consists of one copper ion (Cu²⁺) bonded to two nitrate ions (NO₃⁻). - **Vapor State**: In the vapor state, `Cu(NO_3)_2` exists as a **monomer**. This means that each molecule of copper nitrate remains as a single entity without forming larger aggregates. ### Step 2: Analyze `Cu_2(CH_3COO)_4.2H_2O` - **Structure**: This compound is cupric acetate with water of crystallization. The formula indicates that two copper ions are coordinated with four acetate ions and two water molecules. - **Vapor State**: In the vapor state, `Cu_2(CH_3COO)_4.2H_2O` exists as a **dimer**. This means that two molecules of cupric acetate combine to form a larger structure, which is stabilized by interactions between the acetate groups and the copper ions. ### Conclusion Based on the analysis: - `Cu(NO_3)_2` exists as a **monomer** in vapor state. - `Cu_2(CH_3COO)_4.2H_2O` exists as a **dimer** in vapor state. Thus, the correct answer is **option 2: monomer, dimer**. ---
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