(c) Explain why Zn+2 salts are colorless or white ?

Explanation

To explain why Zn²⁺ salts are colorless or white, we can follow these steps:

### Step 1: Understand the electronic configuration of Zn²⁺
The electronic configuration of a neutral zinc (Zn) atom is [Ar] 3d¹⁰ 4s². When zinc loses two electrons to form Zn²⁺, it loses the two 4s electrons, resulting in the electronic configuration of Zn²⁺ being [Ar] 3d¹⁰.

### Step 2: Analyze the d-orbitals
In the case of Zn²⁺, the 3d subshell is fully filled with 10 electrons. The arrangement of these electrons in the d-orbitals is such that all electrons are paired. This means that there are no unpaired electrons in the d-orbitals.

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