Statement- 1 Pyridinium chlorochromate can convert primary alcohols into corresponding aldehyde
Statement -2 `MnO_(2)` can oxidize benzylic alcohol into corresponding carboxylic acid
Statement - 3 : `OsO_(4)` can convert alkene into trans 1,2- diol

Options

A. FFF
B. TTT
C. TTF
D. TFF

Explanation

To analyze the statements provided in the question, we will evaluate each statement one by one and determine their validity based on our knowledge of organic chemistry, specifically the behavior of the reagents mentioned.

### Step 1: Evaluate Statement 1
**Statement 1:** Pyridinium chlorochromate can convert primary alcohols into corresponding aldehyde.

**Analysis:**
Pyridinium chlorochromate (PCC) is a well-known oxidizing agent that is particularly effective in converting primary alcohols to aldehydes without further oxidation to carboxylic acids. This is because PCC is a mild oxidizing agent, making it suitable for selective oxidation.

**Conclusion:** This statement is **True**.

### Step 2: Evaluate Statement 2
**Statement 2:** MnO2 can oxidize benzylic alcohol into corresponding carboxylic acid.

**Analysis:**
Manganese dioxide (MnO2) is a mild oxidizing agent that can oxidize benzylic alcohols to benzaldehydes (aldehydes) but does not oxidize them to carboxylic acids. The oxidation of benzylic alcohol to carboxylic acid typically requires stronger oxidizing agents.

**Conclusion:** This statement is **False**.

### Step 3: Evaluate Statement 3
**Statement 3:** OsO4 can convert alkene into trans 1,2-diol.

**Analysis:**
Osmium tetroxide (OsO4) is used for the dihydroxylation of alkenes, resulting in the formation of cis-1,2-diols. The reaction involves the addition of two hydroxyl groups across the double bond of the alkene, and this addition occurs on the same side of the double bond, leading to a cis product.

**Conclusion:** This statement is **False**.

### Final Summary of Statements
- **Statement 1:** True
- **Statement 2:** False
- **Statement 3:** False

### Correct Answer
Based on the evaluations, the correct answer is **Option 4: True, False, False**.

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