Give names of the reagents to bring about the following transformations:
(i) Hexan-1-ol to hexanal
(ii) Cyclohexanol to cyclohexanone
(iii) p-Fluorotoluene to
(iv) Ethanenitrile to ethanal p-fluorobenzaldehyde
(v) Allyl alcohol to propenal
(vi) But-2-ene to ethanal

Explanation

To solve the transformations of the given organic compounds, we will identify the appropriate reagents for each conversion step by step.

### Step-by-Step Solution:

**(i) Hexan-1-ol to hexanal:**
1. **Identify the functional groups:** Hexan-1-ol is an alcohol (–OH), and hexanal is an aldehyde (–CHO).
2. **Determine the reaction type:** The conversion from alcohol to aldehyde requires oxidation.
3. **Select the reagent:** A suitable oxidizing agent for this transformation is **Pyridinium chlorochromate (PCC)**, which selectively oxidizes primary alcohols to aldehydes without further oxidation to carboxylic acids.
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