Example for a coordination compound is

Options

A. `CoCl_(3). 6NH_(3)`
B. `KCl.MgCl_(2).6H_(2)O`
C. K[AuCl4]
D. `FeSO_(4).(NH_(4))_(2)SO_(4).6H_(2)O`

Answer

To solve the question "Example for a coordination compound is," we need to understand the definition and characteristics of coordination compounds. Here’s a step-by-step breakdown of how to arrive at the answer:

### Step 1: Understand the Definition of Coordination Compounds
A coordination compound consists of a central metal atom or ion surrounded by a group of non-metal atoms or molecules, known as ligands. These ligands are bonded to the central atom through coordinate covalent bonds.

**Hint:** Remember that coordination compounds have a central metal atom and ligands surrounding it.

### Step 2: Identify the Characteristics
Coordination compounds are typically represented with the central atom and its ligands enclosed in brackets. The ligands can be neutral molecules or anions. The entire complex may be associated with counter ions outside the brackets.

**Hint:** Look for brackets in the chemical formula; they indicate a coordination complex.

### Step 3: Analyze the Options
Given the options, we need to identify which one represents a coordination compound. The presence of brackets in the formula is a key indicator.

1. **Option A:** No brackets → Not a coordination compound
2. **Option B:** No brackets → Not a coordination compound
3. **Option C:** Brackets present → Likely a coordination compound
4. **Option D:** No brackets → Not a coordination compound

**Hint:** Focus on the option that has brackets, as it signifies a coordination compound.

### Step 4: Confirm the Central Atom and Ligands
In the option that has brackets (Option C), check if there is a central metal atom and a group of ligands. For example, if the formula is [AuCl4]K, Au is the central atom, and Cl4 are the ligands.

**Hint:** Identify the central atom and its surrounding ligands to confirm it fits the definition.

### Step 5: Conclude the Answer
Based on the analysis, the option with brackets (Option C) is indeed a coordination compound, as it contains a central metal atom surrounded by ligands.

**Final Answer:** The example for a coordination compound is Option C.