Products of the following reaction are
`CH_(3)-underset(CH_(3))underset(|)(C )=CH-CH_(3)overset(KMnO_(4)//H^(-))rarr`

Options

A. `CH_(3)-overset(OH)overset(|)underset(CH_(3))underset(|)(C )-overset(OH)overset(|)(CH)-CH_(3)`
B. `CH_(3)CHO+CH_(3)CHO`
C. `CH_(3)COCH_(3)+CH_(3)COOH`
D. `2CH_(3)COOH`

Explanation

To solve the given problem, we need to determine the products of the reaction of the compound `CH3-CH(CH3)=CH-CH3` with KMnO4 in the presence of H+.

### Step-by-Step Solution:

1. **Identify the Reactant**:
The reactant is `CH3-CH(CH3)=CH-CH3`, which is 2-methyl-1-butene. It has a double bond between the second and third carbon atoms.

**Hint**: Recognize the structure of the alkene and the position of the double bond.

2. **Understand the Reaction Conditions**:
KMnO4 is a strong oxidizing agent, and in the presence of H+, it will oxidize the alkene to form vicinal diols (glycols). This reaction is known as syn-dihydroxylation.

**Hint**: Remember that KMnO4 in acidic conditions adds hydroxyl groups across the double bond.

3. **Reaction Mechanism**:
- The double bond in the alkene will react with KMnO4, leading to the formation of a cyclic manganate ester.
- This intermediate will then be hydrolyzed (in the presence of H+) to yield the corresponding diol.

**Hint**: Visualize the formation of the cyclic intermediate and how it opens up to form the diol.

4. **Determine the Product**:
The product of the reaction will be a vicinal diol, specifically 2-methyl-2,3-butanediol. The structure will have hydroxyl groups (-OH) added to the second and third carbon atoms of the original alkene.

**Hint**: Draw the structure of the product to confirm the placement of the hydroxyl groups.

5. **Final Product Name**:
The final product can be named as 2-methyl-2,3-butanediol, which indicates that there are two hydroxyl groups on the second and third carbons of the butane chain.

**Hint**: Use IUPAC naming rules to derive the correct name from the structure.

### Final Answer:
The product of the reaction is **2-methyl-2,3-butanediol**.